diff --git a/extensions/pagetop-bootsier/src/theme/attrs/border.rs b/extensions/pagetop-bootsier/src/theme/attrs/border.rs
index af66db78..f83bb13a 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/border.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/border.rs
@@ -57,7 +57,7 @@ impl BorderColor {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(BorderColor::Theme(Color::Primary).to_class(), "border-primary");
     /// assert_eq!(BorderColor::Subtle(Color::Warning).to_class(), "border-warning-subtle");
diff --git a/extensions/pagetop-bootsier/src/theme/attrs/breakpoint.rs b/extensions/pagetop-bootsier/src/theme/attrs/breakpoint.rs
index ec2c8568..5ee64ad5 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/breakpoint.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/breakpoint.rs
@@ -69,7 +69,7 @@ impl BreakPoint {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// let bp = BreakPoint::MD;
     /// assert_eq!(bp.class_with("col", ""), "col-md");
diff --git a/extensions/pagetop-bootsier/src/theme/attrs/button.rs b/extensions/pagetop-bootsier/src/theme/attrs/button.rs
index 01e0dd57..82ce9471 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/button.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/button.rs
@@ -75,7 +75,7 @@ impl ButtonColor {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(
     ///     ButtonColor::Background(Color::Primary).to_class(),
@@ -131,7 +131,7 @@ impl ButtonSize {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(ButtonSize::Small.to_class(), "btn-sm");
     /// assert_eq!(ButtonSize::Large.to_class(), "btn-lg");
diff --git a/extensions/pagetop-bootsier/src/theme/attrs/color.rs b/extensions/pagetop-bootsier/src/theme/attrs/color.rs
index eb9f57d4..de254643 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/color.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/color.rs
@@ -43,7 +43,7 @@ impl Color {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(Color::Primary.to_class(), "primary");
     /// assert_eq!(Color::Danger.to_class(), "danger");
@@ -123,7 +123,7 @@ impl Opacity {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(Opacity::Opaque.class_with(""), "opacity-100");
     /// assert_eq!(Opacity::Half.class_with("bg"), "bg-opacity-50");
@@ -155,7 +155,7 @@ impl Opacity {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(Opacity::Opaque.to_class(), "opacity-100");
     /// assert_eq!(Opacity::Half.to_class(), "opacity-50");
@@ -236,7 +236,7 @@ impl ColorBg {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(ColorBg::Body.to_class(), "bg-body");
     /// assert_eq!(ColorBg::Theme(Color::Primary).to_class(), "bg-primary");
@@ -320,7 +320,7 @@ impl ColorText {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(ColorText::Body.to_class(), "text-body");
     /// assert_eq!(ColorText::Theme(Color::Primary).to_class(), "text-primary");
diff --git a/extensions/pagetop-bootsier/src/theme/attrs/layout.rs b/extensions/pagetop-bootsier/src/theme/attrs/layout.rs
index 81b07834..54e3f516 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/layout.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/layout.rs
@@ -60,7 +60,7 @@ impl ScaleSize {
     ///
     /// # Ejemplo
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(ScaleSize::Auto.class_with("border"), "border");
     /// assert_eq!(ScaleSize::Zero.class_with("m"), "m-0");
diff --git a/extensions/pagetop-bootsier/src/theme/attrs/rounded.rs b/extensions/pagetop-bootsier/src/theme/attrs/rounded.rs
index 2a959767..0f9536a8 100644
--- a/extensions/pagetop-bootsier/src/theme/attrs/rounded.rs
+++ b/extensions/pagetop-bootsier/src/theme/attrs/rounded.rs
@@ -70,7 +70,7 @@ impl RoundedRadius {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(RoundedRadius::Scale2.class_with(""), "rounded-2");
     /// assert_eq!(RoundedRadius::Zero.class_with("rounded-top"), "rounded-top-0");
@@ -102,7 +102,7 @@ impl RoundedRadius {
     ///
     /// # Ejemplos
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use pagetop_bootsier::theme::*;
     /// assert_eq!(RoundedRadius::Default.to_class(), "rounded");
     /// assert_eq!(RoundedRadius::Zero.to_class(), "rounded-0");
diff --git a/extensions/pagetop-bootsier/src/theme/button.rs b/extensions/pagetop-bootsier/src/theme/button.rs
index e494c1df..fbb8617f 100644
--- a/extensions/pagetop-bootsier/src/theme/button.rs
+++ b/extensions/pagetop-bootsier/src/theme/button.rs
@@ -18,7 +18,7 @@ use crate::theme::{ButtonAction, ButtonColor, ButtonSize};
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -47,8 +47,8 @@ use crate::theme::{ButtonAction, ButtonColor, ButtonSize};
 pub struct Button {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del botón.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del botón.
+    props: Props,
     /// Devuelve el comportamiento del botón al activarse.
     kind: ButtonAction,
     /// Devuelve el esquema de color del botón.
@@ -80,7 +80,7 @@ impl Component for Button {
         let mut classes = "btn".to_string();
         (*self.color()).push_class(&mut classes);
         (*self.size()).push_class(&mut classes);
-        self.alter_classes(ClassesOp::Prepend, classes);
+        self.alter_prop(PropsOp::prepend_classes(classes));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -88,7 +88,7 @@ impl Component for Button {
             button
                 id=[self.id()]
                 type=(self.kind())
-                class=[self.classes().get()]
+                (self.props())
                 name=[self.name().get()]
                 value=[self.value().get()]
                 autofocus[*self.autofocus()]
@@ -147,10 +147,10 @@ impl Button {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al botón.
+    /// Modifica los atributos HTML o las clases CSS del botón.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/classes/border.rs b/extensions/pagetop-bootsier/src/theme/classes/border.rs
index bfa65522..7085b2e6 100644
--- a/extensions/pagetop-bootsier/src/theme/classes/border.rs
+++ b/extensions/pagetop-bootsier/src/theme/classes/border.rs
@@ -26,7 +26,7 @@ use crate::theme::attrs::{BorderColor, Opacity, ScaleSize, Side};
 ///
 /// # Ejemplos
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop_bootsier::theme::*;
 ///
 /// // Borde global.
@@ -145,7 +145,7 @@ impl Border {
 ///
 /// # Ejemplos
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop_bootsier::theme::*;
 /// // Convertir explícitamente con `From::from`:
 /// let b = classes::Border::from(ScaleSize::Two);
diff --git a/extensions/pagetop-bootsier/src/theme/classes/layout.rs b/extensions/pagetop-bootsier/src/theme/classes/layout.rs
index 1438b210..42612fec 100644
--- a/extensions/pagetop-bootsier/src/theme/classes/layout.rs
+++ b/extensions/pagetop-bootsier/src/theme/classes/layout.rs
@@ -9,7 +9,7 @@ use crate::theme::attrs::{ScaleSize, Side};
 ///
 /// # Ejemplos
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop_bootsier::theme::*;
 ///
 /// let m = classes::Margin::with(Side::Top, ScaleSize::Three);
@@ -97,7 +97,7 @@ impl Margin {
 ///
 /// # Ejemplos
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop_bootsier::theme::*;
 ///
 /// let p = classes::Padding::with(Side::LeftAndRight, ScaleSize::Two);
diff --git a/extensions/pagetop-bootsier/src/theme/classes/rounded.rs b/extensions/pagetop-bootsier/src/theme/classes/rounded.rs
index 9fcb544e..d4fbdd2f 100644
--- a/extensions/pagetop-bootsier/src/theme/classes/rounded.rs
+++ b/extensions/pagetop-bootsier/src/theme/classes/rounded.rs
@@ -14,7 +14,7 @@ use crate::theme::attrs::RoundedRadius;
 ///
 /// # Ejemplos
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop_bootsier::theme::*;
 ///
 /// // Radio global:
diff --git a/extensions/pagetop-bootsier/src/theme/container/component.rs b/extensions/pagetop-bootsier/src/theme/container/component.rs
index 9e4e33c0..bac350d0 100644
--- a/extensions/pagetop-bootsier/src/theme/container/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/container/component.rs
@@ -11,7 +11,7 @@ use crate::theme::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop_bootsier::theme::*;
 ///
 /// let main = Container::main()
@@ -22,8 +22,8 @@ use crate::theme::*;
 pub struct Container {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al contenedor.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor.
+    props: Props,
     /// Devuelve el tipo semántico del contenedor.
     container_kind: container::Kind,
     /// Devuelve el comportamiento para el ancho del contenedor.
@@ -42,7 +42,7 @@ impl Component for Container {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, self.container_width().to_class());
+        self.alter_prop(PropsOp::prepend_classes(self.container_width().to_class()));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -58,32 +58,32 @@ impl Component for Container {
         };
         Ok(match self.container_kind() {
             container::Kind::Default => html! {
-                div id=[self.id()] class=[self.classes().get()] style=[style] {
+                div id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
             container::Kind::Main => html! {
-                main id=[self.id()] class=[self.classes().get()] style=[style] {
+                main id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
             container::Kind::Header => html! {
-                header id=[self.id()] class=[self.classes().get()] style=[style] {
+                header id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
             container::Kind::Footer => html! {
-                footer id=[self.id()] class=[self.classes().get()] style=[style] {
+                footer id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
             container::Kind::Section => html! {
-                section id=[self.id()] class=[self.classes().get()] style=[style] {
+                section id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
             container::Kind::Article => html! {
-                article id=[self.id()] class=[self.classes().get()] style=[style] {
+                article id=[self.id()] (self.props()) style=[style] {
                     (output)
                 }
             },
@@ -141,7 +141,7 @@ impl Container {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor.
+    /// Modifica los atributos HTML o las clases CSS del contenedor.
     ///
     /// También acepta clases predefinidas para:
     ///
@@ -150,8 +150,8 @@ impl Container {
     /// - Establecer bordes ([`classes::Border`]).
     /// - Redondear las esquinas ([`classes::Rounded`]).
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/dropdown/component.rs b/extensions/pagetop-bootsier/src/theme/dropdown/component.rs
index b70fed65..779d9021 100644
--- a/extensions/pagetop-bootsier/src/theme/dropdown/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/dropdown/component.rs
@@ -21,7 +21,7 @@ use crate::theme::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -40,8 +40,8 @@ use crate::theme::*;
 pub struct Dropdown {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al menú desplegable.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del menú desplegable.
+    props: Props,
     /// Devuelve el título del menú desplegable.
     title: L10n,
     /// Devuelve el tamaño configurado del botón.
@@ -74,10 +74,9 @@ impl Component for Dropdown {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(
-            ClassesOp::Prepend,
+        self.alter_prop(PropsOp::prepend_classes(
             self.direction().class_with(*self.button_grouped()),
-        );
+        ));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -91,23 +90,23 @@ impl Component for Dropdown {
         let title = self.title().using(cx);
 
         Ok(html! {
-            div id=[self.id()] class=[self.classes().get()] {
+            div id=[self.id()] (self.props()) {
                 @if !title.is_empty() {
-                    @let mut btn_classes = Classes::new({
+                    @let btn_base = {
                         let mut classes = "btn".to_string();
                         self.button_size().push_class(&mut classes);
                         self.button_color().push_class(&mut classes);
                         classes
-                    });
+                    };
                     @let pos = self.menu_position();
                     @let offset = pos.data_offset();
                     @let reference = pos.data_reference();
                     @let auto_close = self.auto_close.as_str();
-                    @let menu_classes = Classes::new({
+                    @let menu_classes = {
                         let mut classes = "dropdown-menu".to_string();
                         self.menu_align().push_class(&mut classes);
                         classes
-                    });
+                    };
 
                     // Renderizado en modo split (dos botones) o simple (un botón).
                     @if *self.button_split() {
@@ -115,18 +114,18 @@ impl Component for Dropdown {
                         @let btn = html! {
                             button
                                 type="button"
-                                class=[btn_classes.get()]
+                                class=(&btn_base)
                             {
                                 (title)
                             }
                         };
                         // Botón *toggle* que abre/cierra el menú asociado.
+                        @let btn_toggle_classes =
+                            util::join!(&btn_base, " dropdown-toggle dropdown-toggle-split");
                         @let btn_toggle = html! {
                             button
                                 type="button"
-                                class=[btn_classes.alter_classes(
-                                    ClassesOp::Add, "dropdown-toggle dropdown-toggle-split"
-                                ).get()]
+                                class=(&btn_toggle_classes)
                                 data-bs-toggle="dropdown"
                                 data-bs-offset=[offset]
                                 data-bs-reference=[reference]
@@ -142,22 +141,21 @@ impl Component for Dropdown {
                         @match self.direction() {
                             dropdown::Direction::Dropstart => {
                                 (btn_toggle)
-                                ul class=[menu_classes.get()] { (items) }
+                                ul class=(&menu_classes) { (items) }
                                 (btn)
                             }
                             _ => {
                                 (btn)
                                 (btn_toggle)
-                                ul class=[menu_classes.get()] { (items) }
+                                ul class=(&menu_classes) { (items) }
                             }
                         }
                     } @else {
                         // Botón único con funcionalidad de *toggle*.
+                        @let btn_toggle_classes = util::join!(&btn_base, " dropdown-toggle");
                         button
                             type="button"
-                            class=[btn_classes.alter_classes(
-                                ClassesOp::Add, "dropdown-toggle"
-                            ).get()]
+                            class=(&btn_toggle_classes)
                             data-bs-toggle="dropdown"
                             data-bs-offset=[offset]
                             data-bs-reference=[reference]
@@ -166,7 +164,7 @@ impl Component for Dropdown {
                         {
                             (title)
                         }
-                        ul class=[menu_classes.get()] { (items) }
+                        ul class=(&menu_classes) { (items) }
                     }
                 } @else {
                     // Sin botón: sólo el listado como menú contextual.
@@ -187,10 +185,10 @@ impl Dropdown {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al menú desplegable.
+    /// Modifica los atributos HTML o las clases CSS del menú desplegable.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/dropdown/item.rs b/extensions/pagetop-bootsier/src/theme/dropdown/item.rs
index 379a16c9..53aec2e4 100644
--- a/extensions/pagetop-bootsier/src/theme/dropdown/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/dropdown/item.rs
@@ -47,8 +47,8 @@ pub enum ItemKind {
 pub struct Item {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al elemento.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del elemento.
+    props: Props,
     /// Devuelve el tipo de elemento representado.
     item_kind: ItemKind,
 }
@@ -67,7 +67,7 @@ impl Component for Item {
             ItemKind::Void => html! {},
 
             ItemKind::Label(label) => html! {
-                li id=[self.id()] class=[self.classes().get()] {
+                li id=[self.id()] (self.props()) {
                     span class="dropdown-item-text" {
                         (label.using(cx))
                     }
@@ -101,7 +101,7 @@ impl Component for Item {
                 let tabindex = disabled.then_some("-1");
 
                 html! {
-                    li id=[self.id()] class=[self.classes().get()] {
+                    li id=[self.id()] (self.props()) {
                         a
                             class=(classes)
                             href=[href]
@@ -127,7 +127,7 @@ impl Component for Item {
                 let disabled_attr = disabled.then_some("disabled");
 
                 html! {
-                    li id=[self.id()] class=[self.classes().get()] {
+                    li id=[self.id()] (self.props()) {
                         button
                             class=(classes)
                             type="button"
@@ -141,7 +141,7 @@ impl Component for Item {
             }
 
             ItemKind::Header(label) => html! {
-                li id=[self.id()] class=[self.classes().get()] {
+                li id=[self.id()] (self.props()) {
                     h6 class="dropdown-header" {
                         (label.using(cx))
                     }
@@ -149,7 +149,7 @@ impl Component for Item {
             },
 
             ItemKind::Divider => html! {
-                li id=[self.id()] class=[self.classes().get()] { hr class="dropdown-divider" {} }
+                li id=[self.id()] (self.props()) { hr class="dropdown-divider" {} }
             },
         })
     }
@@ -267,10 +267,10 @@ impl Item {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al elemento.
+    /// Modifica los atributos HTML o las clases CSS del elemento.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 }
diff --git a/extensions/pagetop-bootsier/src/theme/form/check.rs b/extensions/pagetop-bootsier/src/theme/form/check.rs
index 434b7e6c..7396dd2f 100644
--- a/extensions/pagetop-bootsier/src/theme/form/check.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/check.rs
@@ -15,7 +15,7 @@ use pagetop::prelude::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let item = form::check::Item::new("apple", L10n::n("Apple")).with_checked(true);
@@ -80,7 +80,7 @@ impl Item {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let interests = form::check::Field::new()
@@ -110,8 +110,8 @@ impl Item {
 pub struct Field {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del grupo.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del grupo.
+    props: Props,
     /// Devuelve el nombre base compartido por todas las casillas del grupo.
     name: AttrName,
     /// Devuelve la etiqueta del grupo.
@@ -136,7 +136,7 @@ impl Component for Field {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, "form-field form-field-checkboxes");
+        self.alter_prop(PropsOp::prepend_classes("form-field form-field-checkboxes"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -146,7 +146,7 @@ impl Component for Field {
             .unwrap_or_else(|| cx.required_id::<Self>(self.id(), 3));
         let container_id = self.id().unwrap_or_else(|| util::join!("edit-", &name));
         Ok(html! {
-            div id=(&container_id) class=[self.classes().get()] {
+            div id=(&container_id) (self.props()) {
                 @if let Some(label) = self.label().lookup(cx) {
                     label class="form-label" { (label) }
                 }
@@ -195,10 +195,10 @@ impl Field {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del grupo de casillas.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del grupo de casillas.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/checkbox.rs b/extensions/pagetop-bootsier/src/theme/form/checkbox.rs
index 18ab908f..06851900 100644
--- a/extensions/pagetop-bootsier/src/theme/form/checkbox.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/checkbox.rs
@@ -15,7 +15,7 @@ use crate::theme::form;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let accept_terms = form::Checkbox::check() // También sirve new() o default().
@@ -45,8 +45,8 @@ use crate::theme::form;
 pub struct Checkbox {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del control.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del control.
+    props: Props,
     /// Devuelve la variante visual del control.
     checkbox_kind: form::CheckboxKind,
     /// Devuelve el nombre del campo.
@@ -87,7 +87,7 @@ impl Component for Checkbox {
         if *self.reverse() {
             classes.push_str(" form-check-reverse");
         }
-        self.alter_classes(ClassesOp::Prepend, classes);
+        self.alter_prop(PropsOp::prepend_classes(classes));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -99,7 +99,7 @@ impl Component for Checkbox {
         let checkbox_id = util::join!(&container_id, "-checkbox");
         let is_switch = *self.checkbox_kind() == form::CheckboxKind::Switch;
         Ok(html! {
-            div id=(&container_id) class=[self.classes().get()] {
+            div id=(&container_id) (self.props()) {
                 input
                     type="checkbox"
                     role=[is_switch.then_some("switch")]
@@ -152,10 +152,10 @@ impl Checkbox {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del control.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del control.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/component.rs b/extensions/pagetop-bootsier/src/theme/form/component.rs
index 80efa941..9d6d2fad 100644
--- a/extensions/pagetop-bootsier/src/theme/form/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/component.rs
@@ -16,7 +16,7 @@ use crate::theme::form;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -49,8 +49,8 @@ use crate::theme::form;
 pub struct Form {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del formulario.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del formulario.
+    props: Props,
     /// Devuelve la URL/ruta de destino del formulario.
     action: AttrValue,
     /// Devuelve el método para enviar el formulario.
@@ -72,7 +72,7 @@ impl Component for Form {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, "form");
+        self.alter_prop(PropsOp::prepend_classes("form"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -83,7 +83,7 @@ impl Component for Form {
         Ok(html! {
             form
                 id=[self.id()]
-                class=[self.classes().get()]
+                (self.props())
                 action=[self.action().get()]
                 method=[method]
                 accept-charset=[self.charset().get()]
@@ -104,10 +104,10 @@ impl Form {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al formulario.
+    /// Modifica los atributos HTML o las clases CSS del formulario.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/fieldset.rs b/extensions/pagetop-bootsier/src/theme/form/fieldset.rs
index 1aacba6c..2e6b7493 100644
--- a/extensions/pagetop-bootsier/src/theme/form/fieldset.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/fieldset.rs
@@ -13,7 +13,7 @@ use pagetop::prelude::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let personal_data = form::Fieldset::new()
@@ -26,8 +26,8 @@ use pagetop::prelude::*;
 pub struct Fieldset {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del `fieldset`.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del `fieldset`.
+    props: Props,
     /// Devuelve la leyenda del `fieldset`.
     legend: Attr<L10n>,
     /// Devuelve la descripción del `fieldset`.
@@ -55,7 +55,7 @@ impl Component for Fieldset {
         }
 
         Ok(html! {
-            fieldset id=[self.id()] class=[self.classes().get()] disabled[*self.disabled()] {
+            fieldset id=[self.id()] (self.props()) disabled[*self.disabled()] {
                 @if let Some(legend) = self.legend().lookup(cx) {
                     legend { (legend) }
                 }
@@ -78,10 +78,10 @@ impl Fieldset {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al `fieldset`.
+    /// Modifica los atributos HTML o las clases CSS del `fieldset`.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/hidden.rs b/extensions/pagetop-bootsier/src/theme/form/hidden.rs
index 6d367155..cc413252 100644
--- a/extensions/pagetop-bootsier/src/theme/form/hidden.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/hidden.rs
@@ -10,7 +10,7 @@ use pagetop::prelude::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let token = form::Hidden::new()
diff --git a/extensions/pagetop-bootsier/src/theme/form/input.rs b/extensions/pagetop-bootsier/src/theme/form/input.rs
index 68cce931..a15f5e95 100644
--- a/extensions/pagetop-bootsier/src/theme/form/input.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/input.rs
@@ -104,7 +104,7 @@ impl fmt::Display for Mode {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let email = form::input::Field::email()
@@ -128,8 +128,8 @@ impl fmt::Display for Mode {
 pub struct Field {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del campo.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del campo.
+    props: Props,
     /// Devuelve el tipo de campo.
     kind: Kind,
     /// Devuelve el nombre del campo.
@@ -175,12 +175,12 @@ impl Component for Field {
 
     fn setup(&mut self, _cx: &Context) {
         if *self.floating_label() {
-            self.alter_classes(ClassesOp::Prepend, "form-floating");
+            self.alter_prop(PropsOp::prepend_classes("form-floating"));
         }
-        self.alter_classes(
-            ClassesOp::Prepend,
-            util::join!("form-field form-field-", self.kind().to_string()),
-        );
+        self.alter_prop(PropsOp::prepend_classes(util::join!(
+            "form-field form-field-",
+            self.kind().to_string()
+        )));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -217,7 +217,7 @@ impl Component for Field {
             None => html! {},
         };
         Ok(html! {
-            div id=[container_id.as_deref()] class=[self.classes().get()] {
+            div id=[container_id.as_deref()] (self.props()) {
                 @if !*self.floating_label() {
                     (label)
                 }
@@ -320,10 +320,10 @@ impl Field {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del campo.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del campo.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/props.rs b/extensions/pagetop-bootsier/src/theme/form/props.rs
index 2ef88f3e..85886569 100644
--- a/extensions/pagetop-bootsier/src/theme/form/props.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/props.rs
@@ -50,7 +50,7 @@ pub enum CheckboxKind {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// // Correo electrónico con sugerencia semántica del navegador.
@@ -243,7 +243,7 @@ impl fmt::Display for Autocomplete {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop_bootsier::theme::*;
 /// let ac = form::Autocomplete::token(form::AutofillField::Username);
 /// let ac = form::Autocomplete::shipping(form::AutofillField::StreetAddress);
diff --git a/extensions/pagetop-bootsier/src/theme/form/radio.rs b/extensions/pagetop-bootsier/src/theme/form/radio.rs
index d79c4f44..101fa2fd 100644
--- a/extensions/pagetop-bootsier/src/theme/form/radio.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/radio.rs
@@ -14,7 +14,7 @@ use crate::LOCALES_BOOTSIER;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let item = form::radio::Item::new("monthly", L10n::n("Monthly")).with_checked(true);
@@ -74,7 +74,7 @@ impl Item {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let plan = form::radio::Field::new()
@@ -98,8 +98,8 @@ impl Item {
 pub struct Field {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del grupo.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del grupo.
+    props: Props,
     /// Devuelve el nombre compartido por todos los botones de opción del grupo.
     name: AttrName,
     /// Devuelve la etiqueta del grupo.
@@ -126,7 +126,7 @@ impl Component for Field {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, "form-field form-field-radios");
+        self.alter_prop(PropsOp::prepend_classes("form-field form-field-radios"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -136,7 +136,7 @@ impl Component for Field {
             .unwrap_or_else(|| cx.required_id::<Self>(self.id(), 3));
         let container_id = self.id().unwrap_or_else(|| util::join!("edit-", &name));
         Ok(html! {
-            div id=(&container_id) class=[self.classes().get()] {
+            div id=(&container_id) (self.props()) {
                 @if let Some(label) = self.label().lookup(cx) {
                     label class="form-label" {
                         (label)
@@ -197,10 +197,10 @@ impl Field {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del grupo de opciones.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del grupo de opciones.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/range.rs b/extensions/pagetop-bootsier/src/theme/form/range.rs
index 45d07acf..bac5a0f7 100644
--- a/extensions/pagetop-bootsier/src/theme/form/range.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/range.rs
@@ -8,7 +8,7 @@ use pagetop::prelude::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let volume = form::Range::new()
@@ -33,8 +33,8 @@ use pagetop::prelude::*;
 pub struct Range {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del control deslizante.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del control deslizante.
+    props: Props,
     /// Devuelve el nombre del campo.
     name: AttrName,
     /// Devuelve la etiqueta del campo.
@@ -65,7 +65,7 @@ impl Component for Range {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, "form-field form-field-range");
+        self.alter_prop(PropsOp::prepend_classes("form-field form-field-range"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -74,7 +74,7 @@ impl Component for Range {
             .or_else(|| self.name().get().map(|n| util::join!("edit-", n)));
         let range_id = container_id.as_deref().map(|id| util::join!(id, "-range"));
         Ok(html! {
-            div id=[container_id.as_deref()] class=[self.classes().get()] {
+            div id=[container_id.as_deref()] (self.props()) {
                 @if let Some(label) = self.label().lookup(cx) {
                     label for=[range_id.as_deref()] class="form-label" { (label) }
                 }
@@ -107,10 +107,10 @@ impl Range {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del control deslizante.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del control deslizante.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/select.rs b/extensions/pagetop-bootsier/src/theme/form/select.rs
index 7d51e9c9..48dc7127 100644
--- a/extensions/pagetop-bootsier/src/theme/form/select.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/select.rs
@@ -18,7 +18,7 @@ use crate::theme::form;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let item = form::select::Item::new("es", L10n::n("Spanish")).with_selected(true);
@@ -74,7 +74,7 @@ impl Item {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let group = form::select::Group::new(L10n::n("Europe"))
@@ -147,7 +147,7 @@ pub enum Entry {
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let idioma = form::select::Field::new()
@@ -193,8 +193,8 @@ pub enum Entry {
 pub struct Field {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor de la lista de selección.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor de la lista de selección.
+    props: Props,
     /// Devuelve el nombre del campo.
     name: AttrName,
     /// Devuelve la etiqueta del campo.
@@ -230,11 +230,11 @@ impl Component for Field {
 
     fn setup(&mut self, _cx: &Context) {
         if *self.floating_label() {
-            self.multiple = false;
-            self.rows.alter_opt(None::<u16>);
-            self.alter_classes(ClassesOp::Prepend, "form-floating");
+            self.alter_multiple(false);
+            self.alter_rows(None::<u16>);
+            self.alter_prop(PropsOp::prepend_classes("form-floating"));
         }
-        self.alter_classes(ClassesOp::Prepend, "form-field form-field-select");
+        self.alter_prop(PropsOp::prepend_classes("form-field form-field-select"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -259,7 +259,7 @@ impl Component for Field {
             None => html! {},
         };
         Ok(html! {
-            div id=[container_id.as_deref()] class=[self.classes().get()] {
+            div id=[container_id.as_deref()] (self.props()) {
                 @if !*self.floating_label() {
                     (label)
                 }
@@ -325,10 +325,10 @@ impl Field {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor de la lista de selección.
+    /// Modifica los atributos HTML o las clases CSS del contenedor de la lista de selección.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/form/textarea.rs b/extensions/pagetop-bootsier/src/theme/form/textarea.rs
index 81b32783..4a9f9c9c 100644
--- a/extensions/pagetop-bootsier/src/theme/form/textarea.rs
+++ b/extensions/pagetop-bootsier/src/theme/form/textarea.rs
@@ -11,7 +11,7 @@ use crate::theme::form;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let descripcion = form::Textarea::new()
@@ -36,8 +36,8 @@ use crate::theme::form;
 pub struct Textarea {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS del contenedor del área de texto.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del contenedor del área de texto.
+    props: Props,
     /// Devuelve el nombre del campo.
     name: AttrName,
     /// Devuelve el valor inicial del área de texto.
@@ -79,10 +79,10 @@ impl Component for Textarea {
 
     fn setup(&mut self, _cx: &Context) {
         if *self.floating_label() {
-            self.rows.alter_opt(None::<u16>);
-            self.alter_classes(ClassesOp::Prepend, "form-floating");
+            self.alter_rows(None::<u16>);
+            self.alter_prop(PropsOp::prepend_classes("form-floating"));
         }
-        self.alter_classes(ClassesOp::Prepend, "form-field form-field-textarea");
+        self.alter_prop(PropsOp::prepend_classes("form-field form-field-textarea"));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -116,7 +116,7 @@ impl Component for Textarea {
             None => html! {},
         };
         Ok(html! {
-            div id=[container_id.as_deref()] class=[self.classes().get()] {
+            div id=[container_id.as_deref()] (self.props()) {
                 @if !*self.floating_label() {
                     (label)
                 }
@@ -159,10 +159,10 @@ impl Textarea {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al contenedor del campo.
+    /// Modifica los atributos HTML o las clases CSS del contenedor del campo.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/icon.rs b/extensions/pagetop-bootsier/src/theme/icon.rs
index 9ef6aeee..5b3f64d3 100644
--- a/extensions/pagetop-bootsier/src/theme/icon.rs
+++ b/extensions/pagetop-bootsier/src/theme/icon.rs
@@ -15,8 +15,8 @@ pub enum IconKind {
 
 #[derive(AutoDefault, Clone, Debug, Getters)]
 pub struct Icon {
-    /// Devuelve las clases CSS asociadas al icono.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del icono.
+    props: Props,
     icon_kind: IconKind,
     aria_label: AttrL10n,
 }
@@ -28,10 +28,10 @@ impl Component for Icon {
 
     fn setup(&mut self, _cx: &Context) {
         if !matches!(self.icon_kind(), IconKind::None) {
-            self.alter_classes(ClassesOp::Prepend, "icon");
+            self.alter_prop(PropsOp::prepend_classes("icon"));
         }
         if let IconKind::Font(font_size) = self.icon_kind() {
-            self.alter_classes(ClassesOp::Add, font_size.as_str());
+            self.alter_prop(PropsOp::add_classes(font_size.as_str()));
         }
     }
 
@@ -43,7 +43,7 @@ impl Component for Icon {
                 let has_label = aria_label.is_some();
                 html! {
                     i
-                        class=[self.classes().get()]
+                        (self.props())
                         role=[has_label.then_some("img")]
                         aria-label=[aria_label]
                         aria-hidden=[(!has_label).then_some("true")]
@@ -60,7 +60,7 @@ impl Component for Icon {
                         viewBox=(viewbox)
                         fill="currentColor"
                         focusable="false"
-                        class=[self.classes().get()]
+                        (self.props())
                         role=[has_label.then_some("img")]
                         aria-label=[aria_label]
                         aria-hidden=[(!has_label).then_some("true")]
@@ -98,10 +98,10 @@ impl Icon {
 
     // **< Icon BUILDER >***************************************************************************
 
-    /// Modifica la lista de clases CSS aplicadas al icono.
+    /// Modifica los atributos HTML o las clases CSS del icono.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_value(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/image/component.rs b/extensions/pagetop-bootsier/src/theme/image/component.rs
index df2c28a7..72a07ae3 100644
--- a/extensions/pagetop-bootsier/src/theme/image/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/image/component.rs
@@ -15,8 +15,8 @@ use crate::theme::*;
 pub struct Image {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas a la imagen.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS de la imagen.
+    props: Props,
     /// Devuelve las dimensiones de la imagen.
     size: image::Size,
     /// Devuelve el origen de la imagen.
@@ -35,7 +35,7 @@ impl Component for Image {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, self.source().to_class());
+        self.alter_prop(PropsOp::prepend_classes(self.source().to_class()));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -47,7 +47,7 @@ impl Component for Image {
                 return Ok(html! {
                     span
                         id=[self.id()]
-                        class=[self.classes().get()]
+                        (self.props())
                         style=[dimensions]
                         role=[(!is_decorative).then_some("img")]
                         aria-label=[(!is_decorative).then_some(alt_text)]
@@ -66,7 +66,7 @@ impl Component for Image {
                 src=[source]
                 alt=(alt_text)
                 id=[self.id()]
-                class=[self.classes().get()]
+                (self.props())
                 style=[dimensions] {}
         })
     }
@@ -87,15 +87,15 @@ impl Image {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas a la imagen.
+    /// Modifica los atributos HTML o las clases CSS de la imagen.
     ///
     /// También acepta clases predefinidas para:
     ///
     /// - Establecer bordes ([`classes::Border`]).
     /// - Redondear las esquinas ([`classes::Rounded`]).
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/nav/component.rs b/extensions/pagetop-bootsier/src/theme/nav/component.rs
index aeb0447e..e79e88aa 100644
--- a/extensions/pagetop-bootsier/src/theme/nav/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/nav/component.rs
@@ -12,7 +12,7 @@ use crate::theme::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -34,8 +34,8 @@ use crate::theme::*;
 pub struct Nav {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al menú.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del menú.
+    props: Props,
     /// Devuelve el estilo visual seleccionado.
     nav_kind: nav::Kind,
     /// Devuelve la distribución y orientación seleccionada.
@@ -54,12 +54,12 @@ impl Component for Nav {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, {
+        self.alter_prop(PropsOp::prepend_classes({
             let mut classes = "nav".to_string();
             self.nav_kind().push_class(&mut classes);
             self.nav_layout().push_class(&mut classes);
             classes
-        });
+        }));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -69,7 +69,7 @@ impl Component for Nav {
         }
 
         Ok(html! {
-            ul id=[self.id()] class=[self.classes().get()] {
+            ul id=[self.id()] (self.props()) {
                 (items)
             }
         })
@@ -101,10 +101,10 @@ impl Nav {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al menú.
+    /// Modifica los atributos HTML o las clases CSS del menú.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/nav/item.rs b/extensions/pagetop-bootsier/src/theme/nav/item.rs
index 43386baf..5d2ef3de 100644
--- a/extensions/pagetop-bootsier/src/theme/nav/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/nav/item.rs
@@ -80,8 +80,8 @@ impl ItemKind {
 pub struct Item {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al elemento.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del elemento.
+    props: Props,
     /// Devuelve el tipo de elemento representado.
     item_kind: ItemKind,
 }
@@ -96,7 +96,7 @@ impl Component for Item {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, self.item_kind().to_class());
+        self.alter_prop(PropsOp::prepend_classes(self.item_kind().to_class()));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -104,7 +104,7 @@ impl Component for Item {
             ItemKind::Void => html! {},
 
             ItemKind::Label(label) => html! {
-                li id=[self.id()] class=[self.classes().get()] {
+                li id=[self.id()] (self.props()) {
                     span class="nav-link disabled" aria-disabled="true" {
                         (label.using(cx))
                     }
@@ -137,7 +137,7 @@ impl Component for Item {
                 let aria_disabled = (*disabled).then_some("true");
 
                 html! {
-                    li id=[self.id()] class=[self.classes().get()] {
+                    li id=[self.id()] (self.props()) {
                         a
                             class=(classes)
                             href=[href]
@@ -153,7 +153,7 @@ impl Component for Item {
             }
 
             ItemKind::Html(html) => html! {
-                li id=[self.id()] class=[self.classes().get()] {
+                li id=[self.id()] (self.props()) {
                     (html.render(cx))
                 }
             },
@@ -170,7 +170,7 @@ impl Component for Item {
                             .unwrap_or_else(|| "Dropdown".to_string())
                     });
                     html! {
-                        li id=[self.id()] class=[self.classes().get()] {
+                        li id=[self.id()] (self.props()) {
                             a
                                 class="nav-link dropdown-toggle"
                                 data-bs-toggle="dropdown"
@@ -290,10 +290,10 @@ impl Item {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al elemento.
+    /// Modifica los atributos HTML o las clases CSS del elemento.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 }
diff --git a/extensions/pagetop-bootsier/src/theme/navbar/component.rs b/extensions/pagetop-bootsier/src/theme/navbar/component.rs
index 096ec87a..0438c981 100644
--- a/extensions/pagetop-bootsier/src/theme/navbar/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/navbar/component.rs
@@ -18,7 +18,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra **simple**, sólo con un menú horizontal:
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -33,7 +33,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra **colapsable**, con botón de despliegue y contenido en el desplegable cuando colapsa:
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let navbar = Navbar::simple_toggle()
@@ -48,7 +48,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra con **marca de identidad a la izquierda** y menú a la derecha, típica de una cabecera:
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let brand = navbar::Brand::new()
@@ -75,7 +75,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra con **botón de despliegue a la izquierda** y **marca de identidad a la derecha**:
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let brand = navbar::Brand::new()
@@ -93,7 +93,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra con el **contenido en un *offcanvas***, ideal para dispositivos móviles o menús largos:
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let oc = Offcanvas::new()
@@ -118,7 +118,7 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 ///
 /// Barra **fija arriba**:
 ///
-/// ```rust
+/// ```rust,no_run
 /// # use pagetop::prelude::*;
 /// # use pagetop_bootsier::theme::*;
 /// let brand = navbar::Brand::new()
@@ -138,8 +138,8 @@ const TOGGLE_OFFCANVAS: &str = "offcanvas";
 pub struct Navbar {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas a la barra de navegación.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS de la barra de navegación.
+    props: Props,
     /// Devuelve el punto de ruptura configurado.
     expand: BreakPoint,
     /// Devuelve la disposición configurada para la barra de navegación.
@@ -160,12 +160,12 @@ impl Component for Navbar {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, {
+        self.alter_prop(PropsOp::prepend_classes({
             let mut classes = "navbar".to_string();
             self.expand().push_class(&mut classes, "navbar-expand", "");
             self.position().push_class(&mut classes);
             classes
-        });
+        }));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -202,7 +202,7 @@ impl Component for Navbar {
         let id = cx.required_id::<Self>(self.id(), 1);
 
         Ok(html! {
-            nav id=(&id) class=[self.classes().get()] {
+            nav id=(&id) (self.props()) {
                 div class="container-fluid" {
                     @match self.layout() {
                         // Barra más sencilla: sólo contenido.
@@ -342,15 +342,15 @@ impl Navbar {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas a la barra de navegación.
+    /// Modifica los atributos HTML o las clases CSS de la barra de navegación.
     ///
     /// También acepta clases predefinidas para:
     ///
     /// - Modificar el color de fondo ([`classes::Background`]).
     /// - Definir la apariencia del texto ([`classes::Text`]).
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
diff --git a/extensions/pagetop-bootsier/src/theme/navbar/item.rs b/extensions/pagetop-bootsier/src/theme/navbar/item.rs
index 9b48adf1..24cbd026 100644
--- a/extensions/pagetop-bootsier/src/theme/navbar/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/navbar/item.rs
@@ -41,7 +41,7 @@ impl Component for Item {
     fn setup(&mut self, _cx: &Context) {
         if let Self::Nav(nav) = self {
             if let Some(mut nav) = nav.get() {
-                nav.alter_classes(ClassesOp::Prepend, "navbar-nav");
+                nav.alter_prop(PropsOp::prepend_classes("navbar-nav"));
             }
         }
     }
@@ -57,7 +57,7 @@ impl Component for Item {
                         return Ok(html! {});
                     }
                     html! {
-                        ul id=[nav.id()] class=[nav.classes().get()] {
+                        ul id=[nav.id()] (nav.props()) {
                             (items)
                         }
                     }
diff --git a/extensions/pagetop-bootsier/src/theme/offcanvas/component.rs b/extensions/pagetop-bootsier/src/theme/offcanvas/component.rs
index a2c014b8..481414fb 100644
--- a/extensions/pagetop-bootsier/src/theme/offcanvas/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/offcanvas/component.rs
@@ -23,7 +23,7 @@ use crate::theme::*;
 ///
 /// # Ejemplo
 ///
-/// ```rust
+/// ```rust,no_run
 /// use pagetop::prelude::*;
 /// use pagetop_bootsier::theme::*;
 ///
@@ -45,8 +45,8 @@ use crate::theme::*;
 pub struct Offcanvas {
     #[getters(skip)]
     id: AttrId,
-    /// Devuelve las clases CSS asociadas al panel.
-    classes: Classes,
+    /// Devuelve los atributos HTML y clases CSS del panel.
+    props: Props,
     /// Devuelve el título del panel.
     title: L10n,
     /// Devuelve el punto de ruptura configurado para cambiar el comportamiento del panel.
@@ -73,13 +73,13 @@ impl Component for Offcanvas {
     }
 
     fn setup(&mut self, _cx: &Context) {
-        self.alter_classes(ClassesOp::Prepend, {
+        self.alter_prop(PropsOp::prepend_classes({
             let mut classes = "offcanvas".to_string();
             self.breakpoint().push_class(&mut classes, "offcanvas", "");
             self.placement().push_class(&mut classes);
             self.visibility().push_class(&mut classes);
             classes
-        });
+        }));
     }
 
     fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
@@ -97,10 +97,10 @@ impl Offcanvas {
         self
     }
 
-    /// Modifica la lista de clases CSS aplicadas al panel.
+    /// Modifica los atributos HTML o las clases CSS del panel.
     #[builder_fn]
-    pub fn with_classes(mut self, op: ClassesOp, classes: impl AsRef<str>) -> Self {
-        self.classes.alter_classes(op, classes);
+    pub fn with_prop(mut self, op: PropsOp) -> Self {
+        self.props.alter_prop(op);
         self
     }
 
@@ -192,7 +192,7 @@ impl Offcanvas {
         html! {
             div
                 id=(&id)
-                class=[self.classes().get()]
+                (self.props())
                 tabindex="-1"
                 data-bs-scroll=[body_scroll]
                 data-bs-backdrop=[backdrop]