Firefox/Gecko suffers severe scrolling jank on the documentation pages because of the large decorative SVG in the page header.
The SVG uses both:
- `mix-blend-mode: overlay`
- `transform: skewY(-18deg)`
Removing only the transform (`skew-y-[-18deg]`) for firefox-base browsers makes scrolling smooth immediately.
Reproduced in:
- Firefox on Windows
- Zen on Windows
- Zen on macOS
Chromium is unaffected.
