On 1/14/13 1:46 PM, Jukka K. Korpela wrote:
2013-01-14 23:18, Tom Livingston wrote:
I've been looking into rem units and noticed that the only fallback
i've seen written about is px. Can you not fallback to em? The fallback
is generally going to be for IE < 9, and they can't resize things set
in px, if need be, so will em work instead?
You can use any unit in a fallback for rem. The reason why you don't
often see em in that role is probably that if an author can figure out a
suitable em fallback, he might just as well use simply em.
I have found a use case for rem units where the cascade that em gives me is
not what I need all.
In this case, I use keywords for font-size. Although not as precise as
pixels, I find the variations between sizes quite usable, with the advantage
of adapting to user text size adjustments.
YMMV of course.
--
Cordially,
David
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