Customize WordPress Login Page Logo with CSS

The WordPress Login Page Logo with CSS

.login h1 a {
	background-image: url('../images/w-logo-blue.png?ver=20131202');
	background-image: none, url('../images/wordpress-logo.svg?ver=20131107');
	background-size: 80px 80px;
	background-position: center top;
	background-repeat: no-repeat;
	color: #999;
	height: 80px;
	font-size: 20px;
	font-weight: normal;
	line-height: 1.3em;
	margin: 0 auto 25px;
	padding: 0;
	text-decoration: none;
	width: 80px;
	text-indent: -9999px;
	outline: none;
	overflow: hidden;
	display: block;
}