New to the web platform in March
Discover some of the interesting features that have landed in stable and beta web browsers during March 2026.
Chrome 146 , Firefox 149 and Safari 26.4 released to stable during March.
This post takes a look at the new features arriving on the platform this month.
Both Firefox 149 and Safari 26.4 include support for name-only @container queries that have no conditions.
This lets you match against containers based solely on their names, making it more straightforward to style elements based on container context without needing to specify size or style constraints.
Chrome 146 adds scroll-position-based control of animations.
This feature lets you create interactions declaratively with CSS, offloading work to a worker thread and improving performance.
It also includes JavaScript interfaces for web animations.
Learn more in CSS scroll-triggered animations are coming .
Along with scroll-triggered animations, Chrome 146 introduces the trigger-scope property.
This lets you limit the visibility of animation trigger names, helping to isolate animation-to-trigger interactions and avoid global name conflicts.
Firefox 149 now supports the hint value for the popover global attribute.
Popovers with the hint value won't close auto popovers when displayed, but will close other hint popovers, providing more fine-grained control over popover behavior.
Safari 16.4 supports display: grid-lanes , this is the value of display that switches on a masonry style layout.
Safari 26.4 adds support for using the min() , max() , and clamp() math functions in the sizes attribute of elements.
