make that piece of css code load in external css file and optimized to load more faster..
so we can use the plugin wp-minify to join all files in one, it will load alot faster..
see it working in my blog
You can use this website: http://www.cleancss.com/ to clean the css file
An idea is create this file in a cache folder...
I Hope u undertand, this is good for google rank...