Individual skill
css-pro
Professional CSS: cascade mastery, modern layout, custom properties, and maintainable architecture. Use when writing, reviewing, or debugging CSS.
skills/css-pro/SKILL.md
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# CSS Pro
## Overview
Modern CSS — **cascade layers, container queries, `:has()`, subgrid, custom properties, and
logical properties** — has retired most of the hacks and half the frameworks. Professional CSS
means understanding the cascade instead of fighting it with specificity wars, choosing layout tools
deliberately (grid vs flex vs flow), architecting with layers and tokens, and writing CSS that
survives the next developer.
The through-line: the cascade is a feature — architect for it, don't carpet-bomb it with `!important`.
## When to use
