If I use ClientLib functionality to minify CSS that contains media queries, the minify process seems to remove the space after "and", rendering the query invalid. This is especially noticeable when using Firefox as the browser.
A description of a very similar issue is found here -> http://www.456bereastreet.com/archive/201012/yui_compressor_and_css_media_queries/
Has anyone else experienced this? If the CSS is not minified, there is no issue.