rustdoc: remove CSS workaround for Firefox 29 #103616
Merged
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CSS variables, which rustdoc now relies on, are only supported in Firefox 31 and later: https://www.mozilla.org/en-US/firefox/31.0/releasenotes/
This means it’s fine to also rely on unprefixed box-sizing, which is supported in Firefox 29 and later: https://www.mozilla.org/en-US/firefox/29.0/releasenotes/