Zoramite/ExpandingTextareas — comment on commit 596aad31406d540b1c16157b329a585cd94568d3
File:  line 0
By bgrins:

The only thing with that is that if there is a percentage or em based margin, it would be correct when the page loads, but could get out of sorts after a resize. So, if the margin-left was 1%, when copying the property, it may report as "20px". We don't really even have any good way to figure out it was "1%" from the CSS to handle that separately. This could be something we just document I guess.

If we went down the route of copying margins, I guess we should do paddings as well? Same issue applies, though.

I really like the idea of not having to really have any plugin specific CSS in the calling code though. Maybe we could have an option to override this behavior if you did want to allow percentage or em values. Something like but probably with a better name?