I've never heard of displaying javascript analytics code via CSS. You need to either edit header.php, index.php, or footer.php and paste the code directly into one of those template files. I recommend header but I've seen it at the beginning or end of index.php and I've seen it in the footer.
Use SEOmoz Toolbar & Google Analytics for 301 Redirect Opportunities
8/2/2012 Diluting page authority can be a major problem for ecommerce sites. SEOs all over can benefit from this quick review of how to use the SEOmoz toolbar and Google Analytics to identify 301 redirect opportunities. This approach really focuses on low hanging fruit because it takes less than 10 minutes to uncover good finds. Here is a quick guide to show how we identify 301 redirect opportunities and the results of a successful implementation.