tailwind ring styles seems to be broken

Hello,

I am having some problems with the[ tailwind ring styles](https://tailwindcss.com/docs/ring-width). The created styles result in the browser to `box-shadow: none`, since they are somehow invalid.
With the classes `:ring-1 :ring-white` that results in:
```css
box-shadow: var(--gi-ring-inset) 0 0 0 calc(1px + var(--gi-ring-offset-width)) var(--gi-ring-color);
--gi-ring-color: rgba(255,255,255,var(--gi-ring-opacity));
```

I tried to overwrite the rule, but still could not get it up and running.
Has someone an idea of how to solve this?

I would be glad for any help or advice
Alex