diff --git a/pagetop/src/html.rs b/pagetop/src/html.rs
index 3d71db75..4e9d3355 100644
--- a/pagetop/src/html.rs
+++ b/pagetop/src/html.rs
@@ -15,7 +15,7 @@ mod identifier;
 pub use identifier::IdentifierValue;
 
 mod classes;
-pub use classes::{Classes, ClassesOp};
+pub use classes::{Classes, ClassesOp, ClassValue};
 
 mod unit;
 pub use unit::UnitValue;
diff --git a/pagetop/src/html/classes.rs b/pagetop/src/html/classes.rs
index a3766c59..2bc8421e 100644
--- a/pagetop/src/html/classes.rs
+++ b/pagetop/src/html/classes.rs
@@ -1,11 +1,14 @@
 use crate::concat_string;
 
+pub type ClassValue = &'static str;
+
 pub enum ClassesOp {
     Add,
-    AddAfter(&'static str),
-    AddBefore(&'static str),
+    AddAfter(ClassValue),
+    AddBefore(ClassValue),
     AddFirst,
-    Replace(&'static str),
+    Remove,
+    Replace(ClassValue),
     Reset,
     SetDefault,
     SetDefaultIfEmpty,
@@ -59,6 +62,17 @@ impl Classes {
                 self.added = concat_string!(classes, " ", self.added).trim().to_owned()
             },
 
+            ClassesOp::Remove => {
+                let v_list: Vec<&str> = classes.split_ascii_whitespace().collect();
+                let mut v_added: Vec<&str> = self.added.split_ascii_whitespace().collect();
+                for class in v_list {
+                    if let Some(pos) = v_added.iter().position(|c| c.eq(&class)) {
+                        v_added.remove(pos);
+                    }
+                }
+                self.added = v_added.join(" ");
+            },
+
             ClassesOp::Replace(class) => {
                 let mut v_added: Vec<&str> = self.added.split_ascii_whitespace().collect();
                 match v_added.iter().position(|c| c.eq(&class)) {