RewriteEngine On
RewriteRule (style)_(.*)\.css$ $1.css

# Remove lines below if your apache don't support mod_headers
<FilesMatch "\.css\.gz$">
ForceType text/css
Header set Content-Encoding: gzip
ForceType text/css
</FilesMatch>
RewriteCond %{HTTP:Accept-Encoding} gzip [OR]
RewriteCond %{HTTP:TE} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule ^(.*)$ $1.gz [QSA,L]
