通过压缩CSS样式表一般可以减小70-80%
<?php ob_start ("ob_gzhandler"); header("Content-type: text/css; charset: UTF-8"); header("Cache-Control: must-revalidate"); $offset = 60 * 60 ; $ExpStr = "Expires: " . gmdate("D, d M Y H:i:s", time() + $offset) . " GMT"; header($ExpStr); ?>