demo · v136
Sectioning Audit
Paste any markup that contains <h1> inside <article>, <section>, <aside>, or <nav>. The audit flags every place where the deprecated UA stylesheet would have silently re-sized your H1 — and shows the rendered output so you can compare.
your HTML
rendered
what we're looking for
- any
<h1>nested inside sectioning content (article,section,aside,nav) — pre-136 the UA shrunk it - headings that relied on the shrink — without an author
font-size, they'll now render at the document-level 2em - recommended fix: explicit
font-sizein your author CSS for eachh1inside sectioning roots