[j1elo]

Wow I just discovered that it's uBlock Origin that totally breaks the page layout. Which means that for some reason this page's CSS are detected as an ad source, and blocked! Curious, as it seems to be a plain and simple static site.

EDIT: It is the "AdGuard Annoyances" optional list, which is disabled by default but I like to enable: https://kb.adguard.com/en/general/adguard-ad-filters#annoyan...

[bscphil]

It's also blocked by Fanboy's annoyances list. It's a generic blocker, /wp-gdpr, probably designed to block a Wordpress plugin's GDPR banner. My guess is this site is using such a plugin, and then stuck the rest of its CSS in the plugin's folder instead of a generic folder like CSS, so it ends up blocked there too. You can whitelist this URL on the site if you want without having to whitelist the site as a whole.