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

@media handheld, screen and (max-width: 1100px) {
    html {
    background: none !important;
    }
}