CssParser::parseCss

static function parseCss($css)
{
	$result = array();

	// remove comments
	$css = preg_replace('!/*[^*]**+([^/][^*]**+)*/!','', $css);
	// remove keyframes rules
	$css = preg_replace('/@[-|keyframes].*?{.*?}[ rn]*?/s', '', $css);
	$css = trim($css);
	foreach(explode("}