pixivfe/doc/Quirks.md

Known quirks

Why aren't my userstyles working?

Origin: https://codeberg.org/VnPower/PixivFE/pulls/62#issuecomment-1568191

PixivFE implements a strong Content-Security-Policy that prevents inline styles from being loaded. If you're using Stylus, you need to enable Advanced > Circumvent CSP 'style-src' via adoptedStyleSheets in Stylus Options (see issue #1685 on the Stylus GitHub repository).