20 Modern CSS Features You Should Know About

A walkthrough of 20 modern CSS features introduced in 2025, covering invoker commands, dialogue light dismiss, popover hints, customizable select elements, CSS carousels with scroll buttons and markers, scroll spy via scroll-target-group, anchored container queries, interest invokers, scroll state queries, sibling index/count functions, scroll-into-view container option, nested view transition groups, DOM state-preserving moveBefore API, advanced attr() function, event source on toggle events, textbox trimming, the shape() function, CSS if statements, custom CSS functions, expanded range syntax for style queries, the stretch sizing keyword, and corner-shape property.