Well, maybe not. However this article shows how to use a local style sheet to override the one on a web site.
Skinning Gmail with a Custom Stylesheet
No longer will I have to suffer bizarre colour combinations when accessing things like library catalogues – now I can override it so I get readable black text on a white/grey background and buttons that I can read. Content first!
A quick rewrite of the stylesheet and away we go. The link is above in case you want to do it yourself and fix any problems you think my blog has.