You might like this boilerplate SASS file that I made to handle a bunch of this type of thing: https://github.com/mgeraci/Sass-Boilerplate

I also see this post explaining the presence of the -webkit-background-clip (http://tumble.sneak.co.nz/post/928998513/fixing-the-backgrou...), but I don't see that behavior in Safari 5. Potentially fixed? If not, I would certainly add that to my boilerplate.