overscroll-behavior-y
Controls what happens when you reach the end of a vertical scroll zone. This is the most common way to stop the background page from scrolling when a popup or menu is open.
Quick example
.sidebar-nav {
/* Stops the main page from scrolling when the sidebar reaches the bottom */
overscroll-behavior-y: contain;
}Quick facts
Initial value
autoInherited
No
Applies to
non-replaced block and inline-block elements
Animation type
discrete
Values
containnoneauto overscroll-behavior-y Browser Support
Widely available Since 2022 95% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2022.
Safe to use without fallbacks.
63+
59+
16+
18+