The root problem with http://input.mozilla.com/en-US/sad is the same as twitter (repainting too much for inline lines), but it doesn't use as much box-shadow, border-radius, and overflow: hidden so the repaints aren't as slow.
The root problem with http:// input.mozilla. com/en- US/sad is the same as twitter (repainting too much for inline lines), but it doesn't use as much box-shadow, border-radius, and overflow: hidden so the repaints aren't as slow.