Custom tailwind

I need to use something like

<span class="bg-blue-100 text-blue-800 text-xs font-medium mr-2 px-2.5 py-0.5 rounded dark:bg-blue-900 dark:text-blue-300">Default</span>

<span class="bg-blue-100 text-blue-800 text-xs font-medium mr-2 px-2.5 py-0.5 rounded dark:bg-blue-900 dark:text-blue-300">Default</span>

But the style is not applied. I read this https://filamentphp.com/docs/2.x/notifications/installation#configuring-styles but I didn't solve the problem. How can I do it?

Filament

Elegant TALL stack notifications for Laravel artisans.