inlinetoc

background: [background-color || background-image ||
  background-repeat || background-attachment ||
  background-position] | inherit] 

background-image: url(/img/4x3.png);
background-repeat: no-repeat;
 background-position: center center;
 background-attachment: fixed; 
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;

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

• Safari 3+
• Chrome Whatever+
• IE 9+
• Opera 10+ (Opera 9.5 supported background-size but not the keywords)
• Firefox 3.6+ (Firefox 4 supports non-vendor prefixed version)