#bg-image {
    position: absolute;
    background: url('img/background.png') no-repeat center center fixed;
    background-size: cover;   
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
    text-align: center;
	width: auto;
	height:auto;
	z-index: -1;
}