// the find
mdo/wtf-html-css
Common reasons your HTML and CSS may be fucked.
A Jekyll-based reference site cataloguing the confusing parts of HTML and CSS — doctype quirks, float behavior, specificity surprises, that sort of thing. Written by @mdo (Bootstrap author), so the examples are solid. Aimed at developers who keep hitting the same walls.
The examples are concrete and minimal — each entry is a small, reproducible snippet rather than a wall of prose. Coming from Bootstrap's author gives it credibility; these aren't invented edge cases, they're things that burned real projects. Multiple community translations suggest it resonated broadly. MIT licensed with no dependencies beyond Jekyll.
Last commit was 2022 and the content reads like 2014 — floats, IE compatibility mode, and browser prefixes dominate, while CSS Grid, container queries, and cascade layers aren't mentioned at all. At 1448 stars and 80 forks, the community never really built it out past the initial entries. The site is a static page with no search, so finding a specific quirk requires scrolling the whole thing.