Emilio Cobos Álvarez
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Hi,
In bug 1536871, where I'm sorting out various interop issues related to
line-height (intents for those coming probably in a couple weeks when
issues with the CSSWG and other implementors are sorted out) I plan to
make the -moz-block-height value of the line-height property not
available to content.
The -moz-block-height value makes the line-height the height of the
containing block (except when it's auto / unresolved, in which case it
behaves like normal).
It's an internal value used for some internal elements in form controls,
and it's fairly undertested for the general case. As such, I don't think
it has a reason to be exposed to content.
The risk of this removal causing issues is fairly small (specially since
we don't expose the -moz-block-height value in the computed style, we
return the resolved value), but I've implemented it under the
"layout.css.line-height-moz-block-height.content.enabled" just to be on
the safe side.
Let me know or comment in the bug if there's any concern with doing this.
Cheers,
-- Emilio