Modern CSS This skill provides a reference for writing modern, robust, and efficient CSS. --- Layout & Responsive Design Container Queries Container units: , , , - size relative to container dimensions Anchored container queries: Style positioned elements based on anchor fallback state Media Query Range Syntax Grid Enhancements - Subgrid: Inherit parent grid lines for nested layouts - Masonry: for Pinterest-style layouts with logical tab order. (Previously proposed as ). --- Color & Theming Color Scheme & Light-Dark Function Modern Color Spaces Color Manipulation Accent Color --- Typography T…