Prism.languages.css.selector = {
	pattern: /[^\{\}\s][^\{\}]*(?=\s*\{)/,
	inside: {
		'pseudo-element': /:(?:after|before|first-letter|first-line|selection)|::[-\w]+/,
		'pseudo-class': /:[-\w]+(?:\(.*\))?/,
		'class': /\.[-:\.\w]+/,
		'id': /#[-:\.\w]+/,
		'attribute': /\[[^\]]+\]/
	}
};

Prism.languages.insertBefore('css', 'function', {
	'hexcode': /#[\da-f]{3,8}/i,
	'entity': /\\[\da-f]{1,8}/i,
	'number': /[\d%\.]+/
});