Using dot (.) in custom border radius for Tailwind v4 globals.css config

[qiaoandrew]

Hi there! I'm hoping to define classes like rounded-1.5 and rounded-2.5. Is it possible to define these in the new globals.css config for Tailwind CSS v4 without using tailwind.config.ts?

I would like to have something like the following, but CSS doesn't allow it:

...
@theme {
    --radius-1.5: 0.375rem;
}
...

Thanks!

[gmaggio]

I noticed that if you use underline in place of the dot like so: --radius-1_5: 0.375rem;, it will be generated as rounded-1.5.

[qiaoandrew]

Awesome, thank you so much!!!