[TxMt] Web Preview Displaying Em Sized Text Too Small

[Brooks Seymore]

Does the Show Web Preview command in Textmate 1.5.5 (Build 1372) have  
a problem displaying text sized in ems? For some reason, text set in  
a style sheet at 0.8 ems doesn't display at the same size as when the  
page is viewed in the latest versions of Safari, Firefox, Camino and  
OmniWeb.

On a possibly related note: does TextMate use Webkit for Web Preview  
and, if so, is it possible to have TextMate use a nightly WebKit  
build instead of the version Safari is based on?

I've searched the archives and couldn't locate any other discussions  
about this.

Brooks