In tailwind.config.js file, try this:

    content: [
        './vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php',
        './storage/framework/views/*.php',
        './resources/views/**/*.blade.php',
        './resources/js/**/*.vue',
    ],

Let me know if that makes a difference.

I tried what you said and not working no. I am using all the latest. Laravel 9 and the latest of all the plugins etc.

What's your webpack.mix.js config?

If you are using VScode then add: Tailwind Css IntelliSense Extension, then add "files.associations": { "*.css": "tailwindcss" }, to settings.json file.