hjemmesidekongen/tailwind-v4
plugins/smedjen/skills/tailwind-v4/SKILL.md
Tailwind CSS v4 — migration from v3, CSS-first theme configuration, custom utilities, dark mode strategies, container queries, and responsive design. Covers @theme, @utility, @variant, @apply usage, and PostCSS integration.
tools
Updated Apr 5, 2026
$ install --global
skillsauthnpx skillsauth add hjemmesidekongen/ai tailwind-v4Install this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 5, 2026, 5:30 PM18.2s3 files scanned
SKILL.md
- name:
- tailwind-v4
- description:
- >
- user_invocable:
- false
- interactive:
- false
- model_tier:
- senior
- depends_on:
- []
- type:
- data_validation
- - name:
- dark_mode_strategy_explicit
- verify:
- Dark mode uses .dark variant or media query — not both mixed
- fail_action:
- Pick one dark mode strategy and apply it consistently
- on_fail:
- Tailwind v4 patterns have migration gaps — fix before shipping
- on_pass:
- Tailwind v4 configuration is correct
- origin:
- smedjen
- inspired_by:
- original
- ported_date:
- 2026-03-10
- iteration:
- 1
- changes:
- Original skill, no port
tailwind-v4
Tailwind v4 replaces the JS config file with CSS-first configuration. Theme, utilities, and variants all live in CSS.
What Changed from v3
- No
tailwind.config.js— theme defined in CSS via@theme - No
@tailwinddirectives — replaced by@import "tailwindcss" - All theme values become CSS variables automatically
@utility/@variantreplace plugin APIs; container queries built-in
Theme Configuration
Define tokens in @theme — Tailwind generates CSS variables and utility classes from them. Override defaults by redefining the same variable; remove them with --color-*: initial.
Key Rules
- Import as
@import "tailwindcss"— not three@tailwinddirectives - Define theme tokens in
@theme {}block in the root CSS file - Use
@utilityfor custom utilities — integrates with all variants automatically @applyis acceptable for base element resets; avoid for component composition- Dark mode: pick media-based or class-based — not both
- Container queries:
@containeron parent,@cq-sm:variants on children
See references/process.md for v3→v4 migration, @theme tokens, variant patterns, and anti-patterns.
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