Greasy Fork is available in English.
Formats and highlights CSS code shown after [Show CSS] clicking. (works with the new userstyles.org layout).
It's modified version of https://greasyfork.org/en/scripts/41-userstyles-org-css-highlighter (by trespassersW)
for the new userstyles.org layout.
It uses the arrive.js library.
Thanks to trespassersW for a very useful script!
Hosted in GitHub