It also doesn't highlight on mouseover.

enter image description here

EDIT: Forgot important information. This is Firefox 3.6 on Windows Vista. I tried clearing my cache. I could not reproduce on Chrome.

  • Reproduced in SeaMonkey 2.5 on Win 7
    – FAE
    Commented Dec 19, 2011 at 15:13
  • Reproduced in Firefox 8.0 on Win 7 Commented Dec 19, 2011 at 15:15

1 Answer 1


Fixed in the next build. We were using the non-standard background-position-y CSS property, which unfortunately isn't supported by Firefox and Opera .

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