/*
html { 
  background: url('/img/cs/CSSI.jpg') no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/img/cs/CSSI.jpg', sizingMethod='scale');
  -ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/img/cs/CSSI.jpg', sizingMethod='scale')";
}
*/
* { margin: 0; padding: 0; background-color:#000 }

.bgwidth { width: 100%; }
.bgheight { height: 100%; }

@media screen and (max-width: 640px) {
  #bg { position: fixed; top: 0; left: 0;}
}