diff --git a/css.html b/css.html
index cc482f95e..51c5319fe 100644
--- a/css.html
+++ b/css.html
@@ -2116,7 +2116,7 @@ For example, <section> should be wrapped as inline.
Buttons will appear pressed (with a darker background, darker border, and inset shadow) when active. For <button> elements, this is done via :active. For <a> elements, it's done with .active. However, you may use .active <button>s should you need to replicate the active state progammatically.
No need to add :active as it's a pseudo state, but if you need it, go ahead and add .active.
No need to add :active as it's a pseudo state, but if you need to force it, go ahead and add .active.