For who use Astro / Tailwind v4

1. Create `tailwind.config.js` file:
```js 
/** @type {import('tailwindcss').Config} */
export default {
  content: [
    './src/**/*.{astro,html,js,jsx,md,mdx,svelte,ts,tsx,vue}',
    './node_modules/stdf/dist/**/*.{js,svelte}'
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}
```
2.  Insert to `app.css` file:  
```js 
@config "../../tailwind.config.js";