A CSS UI library exploring how next-gen HTML & CSS features can change the way we create components. Designed to be used by professional teams as well as tinkering hobbyists.
css html popover component-library container-queries ui-library color-mix open-props css-nesting light-dark css-has container-style-queries css-scope interpolate-size details-content starting-style
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Updated
Feb 9, 2026 - CSS