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

 img.bg { display: block; z-index:-20;
			/* Set rules to fill background */
			min-height: 100%;
			min-width: 800px;

			/* Set up proportionate scaling */
			width: 100%;
			height: 100%;

			/* Set up positioning */
			position: fixed;
			top: 0;
			left: 0;
		}