diff --git a/assets/css/basic.css b/assets/css/basic.css
index b323e0e0..92e1b943 100644
--- a/assets/css/basic.css
+++ b/assets/css/basic.css
@@ -425,6 +425,11 @@ body {
 .dropdown-menu.show {
     display: block;
 }
+/* Anchors the menu's right edge to the button's right edge, so it opens inwards. */
+.dropdown-menu-end {
+    left: auto;
+    right: 0;
+}
 
 /* Options and headers stay on one line, so the menu grows to fit the longest one. */
 .dropdown-item {
diff --git a/extensions/pagetop-admin/src/lib.rs b/extensions/pagetop-admin/src/lib.rs
index 7e3d3e35..fbf6b053 100644
--- a/extensions/pagetop-admin/src/lib.rs
+++ b/extensions/pagetop-admin/src/lib.rs
@@ -100,8 +100,9 @@ use pagetop_seaorm::install_migrations;
 include_locales!(LOCALES_ADMIN);
 
 /// Ruta raíz del panel de administración. No es configurable: otras piezas del ecosistema (p. ej.
-/// las rutas de `pagetop-user`, `/admin/user/...`) ya asumen este valor de forma literal.
-pub(crate) const ADMIN_BASE_PATH: &str = "/admin";
+/// las rutas de `pagetop-user`, `/admin/user/...`) ya asumen este valor de forma literal. Es
+/// pública para que otras extensiones enlacen al panel sin repetir la ruta.
+pub const ADMIN_BASE_PATH: &str = "/admin";
 
 pub mod action;
 pub mod component;
diff --git a/extensions/pagetop-admin/src/registry.rs b/extensions/pagetop-admin/src/registry.rs
index 5bc315fd..3adcfd50 100644
--- a/extensions/pagetop-admin/src/registry.rs
+++ b/extensions/pagetop-admin/src/registry.rs
@@ -269,6 +269,22 @@ pub fn global() -> &'static AdminRegistry {
     REGISTRY.get().expect("AdminRegistry not initialized")
 }
 
+/// Devuelve `true` si el usuario de la petición actual tiene acceso a alguna página del panel, es
+/// decir, si `/admin` no le devolvería un acceso denegado.
+///
+/// Permite a otras extensiones (p. ej. el menú de cuenta de `pagetop-user`) ofrecer el enlace a
+/// la administración sólo cuando procede.
+pub fn can_access_admin(cx: &Context) -> bool {
+    let reg = global();
+    reg.ordered_sections().into_iter().any(|section| {
+        section.is_visible(cx)
+            && reg
+                .pages_for_section(&section.key)
+                .into_iter()
+                .any(|page| page.is_accessible(cx))
+    })
+}
+
 // **< Menú de administración >*********************************************************************
 
 /// Construye la barra de navegación de administración para el usuario de la petición actual: un
@@ -308,7 +324,5 @@ pub fn admin_navbar(cx: &Context) -> Navbar {
         nav = nav.with_item(nav::Item::dropdown(menu));
     }
 
-    Navbar::simple()
-        .with_position(navbar::Position::StickyTop)
-        .with_item(navbar::Item::nav(nav))
+    Navbar::simple().with_item(navbar::Item::nav(nav))
 }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/dropdown.rs b/extensions/pagetop-bootsier/src/theme/bs/dropdown.rs
index 829f0f24..f988605f 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/dropdown.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/dropdown.rs
@@ -56,6 +56,11 @@ pub trait DropdownBootsier {
     fn with_direction(self, direction: Direction) -> Self;
 
     /// Configura la alineación horizontal (con posible comportamiento *responsive* adicional).
+    ///
+    /// Si se deja en [`MenuAlign::Start`] (por defecto), se respeta [`with_menu_end()`]; cualquier
+    /// otra alineación prevalece sobre él.
+    ///
+    /// [`with_menu_end()`]: pagetop::base::component::Dropdown::with_menu_end
     fn with_menu_align(self, align: MenuAlign) -> Self;
 
     /// Configura la posición del menú.
@@ -135,9 +140,15 @@ pub(crate) async fn render(
     let direction = dropdown
         .props()
         .extra_or(EXTRA_DIRECTION, Direction::default());
-    let menu_align = dropdown
+    let menu_align = match dropdown
         .props()
-        .extra_or(EXTRA_MENU_ALIGN, MenuAlign::default());
+        .extra_or(EXTRA_MENU_ALIGN, MenuAlign::default())
+    {
+        // `with_menu_end()` del núcleo se traduce a `MenuAlign::End`, pero sólo si no hay una
+        // alineación propia diferente a la predeterminada (`Start`), que prevalece.
+        MenuAlign::Start if *dropdown.menu_end() => MenuAlign::End,
+        align => align,
+    };
     let menu_position = dropdown
         .props()
         .extra_or(EXTRA_MENU_POSITION, MenuPosition::default());
diff --git a/extensions/pagetop-bootsier/src/theme/bs/nav.rs b/extensions/pagetop-bootsier/src/theme/bs/nav.rs
index 5567bef9..90373526 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/nav.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/nav.rs
@@ -169,6 +169,11 @@ pub(crate) async fn item_render(item: &Item, cx: &mut Context) -> Result<Markup,
                         .lookup(cx)
                         .unwrap_or_else(|| "Dropdown".to_string())
                 });
+                let menu_classes = if *dd.menu_end() {
+                    "dropdown-menu dropdown-menu-end"
+                } else {
+                    "dropdown-menu"
+                };
                 html! {
                     li (item.props().unpack(cx)) {
                         a
@@ -181,7 +186,7 @@ pub(crate) async fn item_render(item: &Item, cx: &mut Context) -> Result<Markup,
                         {
                             (title)
                         }
-                        ul class="dropdown-menu" {
+                        ul class=(menu_classes) {
                             (items)
                         }
                     }
diff --git a/extensions/pagetop-bootsier/tests/breakpoint_class.rs b/extensions/pagetop-bootsier/tests/breakpoint_class.rs
index cdadbec0..715280b0 100644
--- a/extensions/pagetop-bootsier/tests/breakpoint_class.rs
+++ b/extensions/pagetop-bootsier/tests/breakpoint_class.rs
@@ -63,6 +63,59 @@ async fn dropdown_menu_align_combines_breakpoint_classes() {
     );
 }
 
+async fn dropdown_menu_html(dropdown: bs::Dropdown) -> String {
+    let mut dropdown = dropdown
+        .with_title(Lc::n("Menu"))
+        .with_item(bs::dropdown::Item::link(Lc::n("Home"), "/"));
+    dropdown.render(&mut cx()).await.into_string()
+}
+
+#[pagetop::test]
+async fn dropdown_menu_end_maps_to_the_end_alignment() {
+    let html = dropdown_menu_html(bs::Dropdown::new().with_menu_end(true)).await;
+    assert!(html.contains(r#"<ul class="dropdown-menu dropdown-menu-end">"#));
+
+    // Without `with_menu_end()` the menu keeps the default (start) alignment.
+    let html = dropdown_menu_html(bs::Dropdown::new()).await;
+    assert!(html.contains(r#"<ul class="dropdown-menu">"#));
+    assert!(!html.contains("dropdown-menu-end"));
+}
+
+#[pagetop::test]
+async fn dropdown_menu_end_is_ignored_without_title() {
+    // A titleless menu is static (no button to align to), so it never gets the end alignment.
+    let mut dropdown = bs::Dropdown::new()
+        .with_menu_end(true)
+        .with_item(bs::dropdown::Item::link(Lc::n("Home"), "/"));
+    let html = dropdown.render(&mut cx()).await.into_string();
+    assert!(html.contains(r#"<ul class="dropdown-menu">"#));
+    assert!(!html.contains("dropdown-menu-end"));
+}
+
+#[pagetop::test]
+async fn dropdown_own_menu_align_wins_over_menu_end() {
+    let html = dropdown_menu_html(
+        bs::Dropdown::new()
+            .with_menu_end(true)
+            .with_menu_align(bs::dropdown::MenuAlign::StartAt(Breakpoint::Md)),
+    )
+    .await;
+    assert!(html.contains("dropdown-menu-md-start"));
+    assert!(!html.contains("dropdown-menu-end"));
+}
+
+#[pagetop::test]
+async fn nav_dropdown_menu_end_adds_the_end_class() {
+    let mut nav = bs::Nav::new().with_item(bs::nav::Item::dropdown(
+        bs::Dropdown::new()
+            .with_title(Lc::n("Menu"))
+            .with_menu_end(true)
+            .with_item(bs::dropdown::Item::link(Lc::n("Home"), "/")),
+    ));
+    let html = nav.render(&mut cx()).await.into_string();
+    assert!(html.contains(r#"<ul class="dropdown-menu dropdown-menu-end">"#));
+}
+
 #[pagetop::test]
 async fn navbar_expands_at_md_by_default_and_at_the_chosen_breakpoint() {
     let item =
diff --git a/extensions/pagetop-user/src/component.rs b/extensions/pagetop-user/src/component.rs
index 179ac779..6746e469 100644
--- a/extensions/pagetop-user/src/component.rs
+++ b/extensions/pagetop-user/src/component.rs
@@ -2,19 +2,19 @@
 
 pub(crate) mod admin;
 
+mod account_menu;
 mod login_form;
 mod password_confirm;
 mod password_reset_confirm_form;
 mod password_reset_form;
 mod register_form;
-mod user_block;
 
+pub use account_menu::{AccountMenu, account_menu};
 pub use login_form::LoginForm;
 pub(crate) use password_confirm::PasswordConfirm;
 pub use password_reset_confirm_form::PasswordResetConfirmForm;
 pub use password_reset_form::PasswordResetForm;
 pub use register_form::RegisterForm;
-pub use user_block::UserBlock;
 
 use pagetop::prelude::*;
 
diff --git a/extensions/pagetop-user/src/component/account_menu.rs b/extensions/pagetop-user/src/component/account_menu.rs
new file mode 100644
index 00000000..b2931274
--- /dev/null
+++ b/extensions/pagetop-user/src/component/account_menu.rs
@@ -0,0 +1,87 @@
+//! Menú de cuenta (iniciar y cerrar sesión).
+
+use pagetop::prelude::*;
+use pagetop_admin::registry::can_access_admin;
+use pagetop_htmx::prelude::*;
+
+use crate::config::SETTINGS;
+use crate::{LOCALES_USER, LOGIN_PATH, LOGOUT_PATH, PROFILE_PATH, REGISTER_PATH};
+
+/// Construye el menú de cuenta como un [`Nav`] justificado al final de su contenedor.
+///
+/// Para un usuario anónimo ofrece un enlace de inicio de sesión y, si el registro está permitido,
+/// otro para crear una cuenta. Para un usuario autenticado, un desplegable titulado con su nombre
+/// visible, con su perfil, la administración (si tiene acceso a ella) y la opción de cerrar
+/// sesión. Se construye con componentes del núcleo, sin depender de ningún tema, para
+/// usarlo dentro de una [`Navbar`].
+///
+/// El cierre de sesión se envía con una petición htmx que requiere JavaScript en el navegador.
+///
+/// # Ejemplo
+///
+/// ```rust,no_run
+/// use pagetop::prelude::*;
+/// use pagetop_user::prelude::*;
+///
+/// # fn build(cx: &Context) -> Navbar {
+/// Navbar::simple().with_item(navbar::Item::nav(account_menu(cx)))
+/// # }
+/// ```
+pub fn account_menu(cx: &Context) -> Nav {
+    let nav = Nav::new().with_prop(FlexItem::push_end());
+    let user = cx.current_user();
+    if user.is_authenticated() {
+        let title = match user.display_name() {
+            Some(name) => Lc::n(name.to_string()),
+            None => Lc::t("menu-account", &LOCALES_USER),
+        };
+        // El cierre de sesión requiere POST; el atributo `hx-post` viaja en el `<li>` del elemento
+        // (ver `logout_post`, que responde con `HX-Redirect` a las peticiones htmx).
+        let logout = dropdown::Item::button(Lc::t("btn-logout", &LOCALES_USER))
+            .with_prop(PropsOp::set(hx::POST, cx.route(LOGOUT_PATH).to_string()));
+        let mut menu = Dropdown::new()
+            .with_title(title)
+            .with_menu_end(true)
+            .with_item(dropdown::Item::link(
+                Lc::t("menu-profile", &LOCALES_USER),
+                cx.route(PROFILE_PATH),
+            ));
+        if can_access_admin(cx) {
+            menu = menu.with_item(dropdown::Item::link(
+                Lc::t("menu-admin", &LOCALES_USER),
+                cx.route(pagetop_admin::ADMIN_BASE_PATH),
+            ));
+        }
+        nav.with_item(nav::Item::dropdown(
+            menu.with_item(dropdown::Item::divider()).with_item(logout),
+        ))
+    } else {
+        let nav = nav.with_item(nav::Item::link(
+            Lc::t("menu-login", &LOCALES_USER),
+            cx.route(LOGIN_PATH),
+        ));
+        if SETTINGS.allow_registration {
+            nav.with_item(nav::Item::link(
+                Lc::t("link-register", &LOCALES_USER),
+                cx.route(REGISTER_PATH),
+            ))
+        } else {
+            nav
+        }
+    }
+}
+
+/// Componente que renderiza el menú de cuenta, ver [`account_menu()`].
+#[derive(AutoDefault, Clone, Debug)]
+pub struct AccountMenu;
+
+#[async_trait]
+impl Component for AccountMenu {
+    fn new() -> Self {
+        Self
+    }
+
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+        Ok(account_menu(cx).render(cx).await)
+    }
+}
diff --git a/extensions/pagetop-user/src/component/user_block.rs b/extensions/pagetop-user/src/component/user_block.rs
deleted file mode 100644
index 62945e52..00000000
--- a/extensions/pagetop-user/src/component/user_block.rs
+++ /dev/null
@@ -1,48 +0,0 @@
-//! Componente de bloque de usuario (login/logout en la cabecera).
-
-use pagetop::prelude::*;
-
-use crate::config::SETTINGS;
-use crate::{LOCALES_USER, LOGIN_PATH, LOGOUT_PATH, REGISTER_PATH};
-
-#[derive(AutoDefault, Clone, Debug)]
-pub struct UserBlock;
-
-#[async_trait]
-impl Component for UserBlock {
-    fn new() -> Self {
-        Self
-    }
-
-    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
-        let user = cx.current_user();
-        Ok(if user.is_authenticated() {
-            let display = user.display_name().unwrap_or("?");
-            html! {
-                nav class="user-block" {
-                    span class="user-name" { (display) }
-                    " · "
-                    form class="user-logout-inline" method="post" action=(cx.route(LOGOUT_PATH)) {
-                        button type="submit" {
-                            (Lc::t("btn-logout", &LOCALES_USER).using(cx))
-                        }
-                    }
-                }
-            }
-        } else {
-            html! {
-                nav class="user-block" {
-                    a href=(cx.route(LOGIN_PATH)) {
-                        (Lc::t("btn-login", &LOCALES_USER).using(cx))
-                    }
-                    @if SETTINGS.allow_registration {
-                        " · "
-                        a href=(cx.route(REGISTER_PATH)) {
-                            (Lc::t("link-register", &LOCALES_USER).using(cx))
-                        }
-                    }
-                }
-            }
-        })
-    }
-}
diff --git a/extensions/pagetop-user/src/handlers/auth.rs b/extensions/pagetop-user/src/handlers/auth.rs
index 351880cf..38306f04 100644
--- a/extensions/pagetop-user/src/handlers/auth.rs
+++ b/extensions/pagetop-user/src/handlers/auth.rs
@@ -3,6 +3,7 @@
 use serde::Deserialize;
 
 use pagetop::prelude::*;
+use pagetop_htmx::prelude::*;
 
 use crate::auth;
 use crate::component::{LoginForm, PasswordResetConfirmForm, PasswordResetForm, RegisterForm};
@@ -119,6 +120,22 @@ pub async fn logout_post(request: HttpRequest) -> Response {
         auth::logout(&sid).await.ok();
     }
     let expiry = session::expiry_cookie();
+    if request.is_htmx() {
+        // La petición sale de un elemento con `hx-post` sin destino: `HX-Redirect` fuerza una
+        // navegación real en vez de insertar la página de login dentro del elemento.
+        let mut response = HtmxResponse::empty()
+            .redirect(cx.route(LOGIN_PATH))
+            .into_response();
+        match expiry.parse() {
+            Ok(value) => {
+                response
+                    .headers_mut()
+                    .insert(web::http::header::SET_COOKIE, value);
+            }
+            Err(_) => trace::warn!("logout: invalid session expiry cookie, header discarded"),
+        }
+        return response;
+    }
     redirect_with_cookie(cx.route(LOGIN_PATH), &expiry)
 }
 
diff --git a/extensions/pagetop-user/src/lib.rs b/extensions/pagetop-user/src/lib.rs
index a4607e2c..9ef1138b 100644
--- a/extensions/pagetop-user/src/lib.rs
+++ b/extensions/pagetop-user/src/lib.rs
@@ -93,7 +93,8 @@ pub use permission::{DeclarePermissions, PermissionRegistry};
 
 /// Prelude de `pagetop-user`.
 pub mod prelude {
-    pub use crate::component::{LoginForm, UserBlock};
+    pub use crate::component::LoginForm;
+    pub use crate::component::{AccountMenu, account_menu};
     pub use crate::error::AuthError;
     pub use crate::{Account, DeclarePermissions, UserStatus};
 }
diff --git a/extensions/pagetop-user/src/locale/en-US/common.ftl b/extensions/pagetop-user/src/locale/en-US/common.ftl
index 5f7e0573..7ff7e288 100644
--- a/extensions/pagetop-user/src/locale/en-US/common.ftl
+++ b/extensions/pagetop-user/src/locale/en-US/common.ftl
@@ -34,6 +34,13 @@ link-register        = Create an account
 link-forgot-password = Forgot your password?
 link-back-to-login   = Back to sign in
 
+# **< Account menu >**
+
+menu-account = Account
+menu-admin   = Administration
+menu-login   = Sign in
+menu-profile = Profile
+
 # **< Messages >**
 
 msg-password-reset-sent =
@@ -42,16 +49,16 @@ msg-password-reset-sent =
 
 # **< Error messages >**
 
-error-invalid-credentials   = Invalid username or password.
-error-account-blocked       = Your account is blocked. Please contact the administrator.
-error-account-pending       = Please verify your email address before signing in.
-error-account-locked        = Too many failed attempts. Please try again later.
-error-password-mismatch     = Passwords do not match.
-error-password-too-short    = Password must be at least { $n } characters.
-error-username-taken        = This username is already taken.
-error-email-taken           = This email address is already registered.
-error-token-invalid         = This link is invalid or has expired.
-error-internal              = An unexpected error occurred. Please try again.
+error-invalid-credentials = Invalid username or password.
+error-account-blocked     = Your account is blocked. Please contact the administrator.
+error-account-pending     = Please verify your email address before signing in.
+error-account-locked      = Too many failed attempts. Please try again later.
+error-password-mismatch   = Passwords do not match.
+error-password-too-short  = Password must be at least { $n } characters.
+error-username-taken      = This username is already taken.
+error-email-taken         = This email address is already registered.
+error-token-invalid       = This link is invalid or has expired.
+error-internal            = An unexpected error occurred. Please try again.
 
 # **< Account statuses >**
 
@@ -123,8 +130,8 @@ btn-edit               = Edit
 btn-manage-roles       = Manage roles
 btn-manage-permissions = Manage permissions
 btn-reset-password     = Reset password
-btn-block               = Block
-btn-activate            = Activate
+btn-block              = Block
+btn-activate           = Activate
 btn-grant-admin        = Grant administrator
 btn-revoke-admin       = Revoke administrator
 link-back-to-list      = Back to list
@@ -142,13 +149,13 @@ empty-roles-list      = No roles found.
 
 # **< Admin: error messages >**
 
-error-role-not-found              = Role not found.
-error-role-machine-name-taken     = This machine name is already taken.
-error-invalid-machine-name        = Machine name may only contain lowercase letters, digits and underscores.
+error-role-not-found               = Role not found.
+error-role-machine-name-taken      = This machine name is already taken.
+error-invalid-machine-name         = Machine name may only contain lowercase letters, digits and underscores.
 error-role-locked                  = This role is a system role and cannot be modified.
-error-role-in-use                 = This role has users assigned and cannot be deleted.
-error-last-administrator          = Cannot remove the last administrator.
-error-cannot-block-self           = You cannot block your own account.
+error-role-in-use                  = This role has users assigned and cannot be deleted.
+error-last-administrator           = Cannot remove the last administrator.
+error-cannot-block-self            = You cannot block your own account.
 error-cannot-modify-own-admin-flag = You cannot grant or revoke your own unrestricted access.
-error-user-not-found              = User not found.
-error-unknown-permission          = Unknown permission key.
+error-user-not-found               = User not found.
+error-unknown-permission           = Unknown permission key.
diff --git a/extensions/pagetop-user/src/locale/es-ES/common.ftl b/extensions/pagetop-user/src/locale/es-ES/common.ftl
index 82ae0b3e..48e81615 100644
--- a/extensions/pagetop-user/src/locale/es-ES/common.ftl
+++ b/extensions/pagetop-user/src/locale/es-ES/common.ftl
@@ -34,6 +34,13 @@ link-register        = Crear una cuenta
 link-forgot-password = ¿Olvidaste tu contraseña?
 link-back-to-login   = Volver al inicio de sesión
 
+# **< Menú de cuenta >**
+
+menu-account = Cuenta
+menu-admin   = Administración
+menu-login   = Iniciar sesión
+menu-profile = Perfil
+
 # **< Mensajes >**
 
 msg-password-reset-sent =
@@ -42,16 +49,16 @@ msg-password-reset-sent =
 
 # **< Mensajes de error >**
 
-error-invalid-credentials   = Usuario o contraseña incorrectos.
-error-account-blocked       = Tu cuenta está bloqueada. Contacta con el administrador.
-error-account-pending       = Verifica tu dirección de email antes de iniciar sesión.
-error-account-locked        = Demasiados intentos fallidos. Inténtalo de nuevo más tarde.
-error-password-mismatch     = Las contraseñas no coinciden.
-error-password-too-short    = La contraseña debe tener al menos { $n } caracteres.
-error-username-taken        = Este nombre de usuario ya está en uso.
-error-email-taken           = Esta dirección de email ya está registrada.
-error-token-invalid         = Este enlace no es válido o ha caducado.
-error-internal              = Se ha producido un error inesperado. Inténtalo de nuevo.
+error-invalid-credentials = Usuario o contraseña incorrectos.
+error-account-blocked     = Tu cuenta está bloqueada. Contacta con el administrador.
+error-account-pending     = Verifica tu dirección de email antes de iniciar sesión.
+error-account-locked      = Demasiados intentos fallidos. Inténtalo de nuevo más tarde.
+error-password-mismatch   = Las contraseñas no coinciden.
+error-password-too-short  = La contraseña debe tener al menos { $n } caracteres.
+error-username-taken      = Este nombre de usuario ya está en uso.
+error-email-taken         = Esta dirección de email ya está registrada.
+error-token-invalid       = Este enlace no es válido o ha caducado.
+error-internal            = Se ha producido un error inesperado. Inténtalo de nuevo.
 
 # **< Estados de cuenta >**
 
@@ -123,8 +130,8 @@ btn-edit               = Editar
 btn-manage-roles       = Gestionar roles
 btn-manage-permissions = Gestionar permisos
 btn-reset-password     = Restablecer contraseña
-btn-block               = Bloquear
-btn-activate             = Activar
+btn-block              = Bloquear
+btn-activate           = Activar
 btn-grant-admin        = Conceder administrador
 btn-revoke-admin       = Revocar administrador
 link-back-to-list      = Volver al listado
@@ -142,13 +149,13 @@ empty-roles-list      = No se han encontrado roles.
 
 # **< Administración: mensajes de error >**
 
-error-role-not-found              = Rol no encontrado.
-error-role-machine-name-taken     = Este nombre técnico ya está en uso.
-error-invalid-machine-name        = El nombre técnico sólo admite minúsculas, dígitos y guiones bajos.
+error-role-not-found               = Rol no encontrado.
+error-role-machine-name-taken      = Este nombre técnico ya está en uso.
+error-invalid-machine-name         = El nombre técnico sólo admite minúsculas, dígitos y guiones bajos.
 error-role-locked                  = Este rol es de sistema y no se puede modificar.
-error-role-in-use                 = Este rol tiene usuarios asignados y no se puede eliminar.
-error-last-administrator          = No se puede quitar al último administrador.
-error-cannot-block-self           = No puedes bloquear tu propia cuenta.
+error-role-in-use                  = Este rol tiene usuarios asignados y no se puede eliminar.
+error-last-administrator           = No se puede quitar al último administrador.
+error-cannot-block-self            = No puedes bloquear tu propia cuenta.
 error-cannot-modify-own-admin-flag = No puedes conceder ni revocar tu propio acceso irrestricto.
-error-user-not-found              = Usuario no encontrado.
-error-unknown-permission          = Clave de permiso desconocida.
+error-user-not-found               = Usuario no encontrado.
+error-unknown-permission           = Clave de permiso desconocida.
diff --git a/extensions/pagetop-user/tests/account_menu.rs b/extensions/pagetop-user/tests/account_menu.rs
new file mode 100644
index 00000000..bc948d8a
--- /dev/null
+++ b/extensions/pagetop-user/tests/account_menu.rs
@@ -0,0 +1,25 @@
+// Verifies the account menu offered to an anonymous user. The authenticated menu needs a logged-in
+// user and an initialized admin registry, so it is not covered here.
+
+use pagetop_user::prelude::*;
+
+use pagetop::prelude::*;
+
+#[pagetop::test]
+async fn anonymous_user_gets_the_login_and_register_links() {
+    let mut cx = Context::default();
+    let html = account_menu(&cx).render(&mut cx).await.into_string();
+
+    assert!(html.contains(r#"href="/user/login""#));
+    assert!(html.contains(r#"href="/user/register""#));
+    assert!(!html.contains("dropdown"));
+}
+
+#[pagetop::test]
+async fn component_renders_the_same_menu_as_the_function() {
+    let mut cx = Context::default();
+    let from_fn = account_menu(&cx).render(&mut cx).await.into_string();
+    let from_component = AccountMenu::new().render(&mut cx).await.into_string();
+
+    assert_eq!(from_fn, from_component);
+}
diff --git a/src/base/component/dropdown/component.rs b/src/base/component/dropdown/component.rs
index dad4b5d4..5de952ee 100644
--- a/src/base/component/dropdown/component.rs
+++ b/src/base/component/dropdown/component.rs
@@ -37,6 +37,8 @@ pub struct Dropdown {
     /// Devuelve el estilo visual del botón.
     #[getters(copy)]
     button_style: button::Style,
+    /// Devuelve si el menú se alinea al final del botón (por defecto, al inicio).
+    menu_end: bool,
     /// Devuelve la lista de elementos del menú.
     items: Children,
 }
@@ -124,12 +126,23 @@ impl Component for Dropdown {
                         (&title)
                     }
                 }
-                ul class="dropdown-menu" { (items) }
+                ul class=(self.menu_classes()) { (items) }
             }
         })
     }
 }
 
+impl Dropdown {
+    // Clases del `<ul>` del menú, compartidas con el renderizado de `nav::Item::dropdown()`.
+    pub(crate) fn menu_classes(&self) -> &'static str {
+        if *self.menu_end() {
+            "dropdown-menu dropdown-menu-end"
+        } else {
+            "dropdown-menu"
+        }
+    }
+}
+
 #[builder_impl]
 impl Dropdown {
     // **< Dropdown BUILDER >***********************************************************************
@@ -170,6 +183,16 @@ impl Dropdown {
         self
     }
 
+    /// Alinea el menú al final del botón (por defecto, al inicio).
+    ///
+    /// Útil cuando el desplegable está pegado al borde final de la página, p. ej. el último de una
+    /// [`Navbar`], para que el menú se abra hacia el interior y no se salga de la pantalla. No
+    /// tiene efecto en un menú sin título, que es estático y no tiene botón al que alinearse.
+    pub fn with_menu_end(mut self, end: bool) -> Self {
+        self.menu_end = end;
+        self
+    }
+
     /// Añade un nuevo elemento al menú o modifica la lista de elementos del menú con una operación
     /// [`TypedOp`].
     ///
diff --git a/src/base/component/nav/item.rs b/src/base/component/nav/item.rs
index 7c1d9c85..8b0391f5 100644
--- a/src/base/component/nav/item.rs
+++ b/src/base/component/nav/item.rs
@@ -163,7 +163,7 @@ impl Component for Item {
                             {
                                 (title)
                             }
-                            ul class="dropdown-menu" {
+                            ul class=(dd.menu_classes()) {
                                 (items)
                             }
                         }
diff --git a/tests/component_dropdown.rs b/tests/component_dropdown.rs
new file mode 100644
index 00000000..05ff49f7
--- /dev/null
+++ b/tests/component_dropdown.rs
@@ -0,0 +1,50 @@
+use pagetop::prelude::*;
+
+fn dropdown() -> Dropdown {
+    Dropdown::new()
+        .with_title(Lc::n("Menu"))
+        .with_item(dropdown::Item::link(Lc::n("Home"), "/"))
+}
+
+#[pagetop::test]
+async fn menu_is_aligned_to_the_start_by_default() {
+    let html = dropdown()
+        .render(&mut Context::default())
+        .await
+        .into_string();
+
+    assert!(html.contains(r#"<ul class="dropdown-menu">"#));
+    assert!(!html.contains("dropdown-menu-end"));
+}
+
+#[pagetop::test]
+async fn menu_end_adds_the_end_class() {
+    let html = dropdown()
+        .with_menu_end(true)
+        .render(&mut Context::default())
+        .await
+        .into_string();
+
+    assert!(html.contains(r#"<ul class="dropdown-menu dropdown-menu-end">"#));
+}
+
+#[pagetop::test]
+async fn menu_end_applies_to_a_dropdown_inside_a_nav() {
+    let mut nav = Nav::new().with_item(nav::Item::dropdown(dropdown().with_menu_end(true)));
+    let html = nav.render(&mut Context::default()).await.into_string();
+
+    assert!(html.contains(r#"<ul class="dropdown-menu dropdown-menu-end">"#));
+}
+
+#[pagetop::test]
+async fn menu_end_is_ignored_without_title() {
+    let html = Dropdown::new()
+        .with_menu_end(true)
+        .with_item(dropdown::Item::link(Lc::n("Home"), "/"))
+        .render(&mut Context::default())
+        .await
+        .into_string();
+
+    assert!(html.contains(r#"<ul class="dropdown-menu">"#));
+    assert!(!html.contains("dropdown-menu-end"));
+}