css fill div with background image

1html { 
2  background: url(images/bg.jpg) no-repeat 
3    center center fixed; 
4  -webkit-background-size: cover;
5  -moz-background-size: cover;
6  -o-background-size: cover;
7  background-size: cover;
8}

1div {
2	background-image: url("example.com/image.png");
3    background-repeat: no-repeat;
4    background-size: cover;
5}

1div {
2  background-image: url("example.com/image.png");
3  background-size: 100% 100%;
4}

1/* with CSS 3 */
2#yourdiv {  
3    background: url('bgimage.jpg') no-repeat;
4    background-size: 100%;
5}