Tailwind CSS v4 rethinks the configuration model and introduces new utilities that make building UIs faster. Here is what changed and how to take advantage of it.
Tailwind CSS v4 is a substantial update that rearchitects how the framework works under the hood while delivering a set of new utility classes that address long-standing developer requests. If you have been using Tailwind v3, some things will feel familiar and some things will require a mental shift. This post covers the highlights.A New Engine and CSS-First ConfigurationThe most significant change in v4 is the move away from a JavaScript configuration file. Instead of tailwind.config.js, you configure Tailwind directly in your CSS file using CSS custom properties and the new @theme directive....
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