That's a very helpful talk on GCC thanks for that, Is it still the case though with GCC? does it still not support CSS minification/compression?Default YUI compression for CSS is causing a strange issue in our project whenever a build deployed pages don't respond at all for quite a while, when I looked at the error log and in the thread dump it showed an error at line where we included a headlib script with our CSS client lib in it. HtmlLibraryManagerImpl is quite a bit of time to build the CSS ...