/*html { 
			background: url(/images/bg/gui-bg-gras.jpg) no-repeat center center fixed;
			-webkit-background-size: cover;
			-moz-background-size: cover;
			-o-background-size: cover;
			background-size: cover;
		}*/

img.bg {
			/* Set rules to fill background */
			min-height: 100%;
			min-width: 1024px;
			
			/* Set up proportionate scaling */
			width: 100%;
			height: auto;
			
			/* Set up positioning */
			position: fixed;
			top: 0;
			left: 0;
		}
		
		@media screen and (max-width: 1024px){
			img.bg {
				left: 50%;
				margin-left: -512px; }
		}