CSS vars not in output compilation?

[nikkpylon]

Hi, when I compile some elements I don't get the associated CSS vars that are necessary, for example:

createTailwindcss({tailwindConfig}).generateStylesFromContent('
      @tailwind base;
      @tailwind components;
      @tailwind utilities;
`, [`<div class='bg-gradient-to-r from-primary-50 to-secondary-50 opacity-20'></div>`])

--tw-gradient-from // not availble in css
--tw-gradient-to // not availble in css

Anyone have an idea how to debug? Thanks for the awesome lib.