HowToCodePage

Tailwind CSS

Utility-first styling inside your markup.

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This course has 3 lessons. Start with the first one and use the next / previous links at the bottom of each lesson — the sidebar keeps the whole course in order.

Lessons

  1. Utility-first basicsInstall the toolchain, read a class list as the CSS it produces, and understand why the numbers in spacing utilities are a scale rather than pixels.
  2. Responsive and state variantsMobile-first breakpoints, the state variants that replace handwritten interaction CSS, and how group, peer and custom variants compose.
  3. Configuration and themingCSS-first theming in v4, the v3 JavaScript config for comparison, and when a custom utility beats a pile of @apply rules.

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Last refreshed 2026-09-17.