CSS overrides for a custom Wordpress login screen. Replace images as needed. Couple with: https://gist.github.com/paulburgess/f657ab10e221b986f4f3

login.css

body.login {
	background: #FFF !important;
}


#login {
	padding: 4% 0 0 !important;
}

#login h1 {
	margin-left: 5px !important;
	text-align: center;
}

#login h1 a { 
background-image: url("../img/holding-logo.png") !important; 
background-repeat: no-repeat !important;
	-webkit-background-size: 200px auto;
	background-size: 200px auto;
	width:200px !important;
	height: 68px !important;


background: none;
	display: block;
	margin:0 auto;
	}

.login form {
	box-shadow: inherit;
	border-top:1px #CCC dotted;
	border-bottom:1px #CCC dotted;
}


.wp-core-ui .button-primary {
  border:0 !important;
  background: #333 !important;
}


.wp-core-ui .button-primary:hover {
  border: 0 !important;
  background: green !important;
}