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}
1body {
2 background-position: center;
3 background-repeat: no-repeat;
4 background-size: cover;
5}
1.Background {
2 background-image: url("Your picture name.jpg");
3 background-repeat: no-repeat;
4 height: 100%;
5 background-position: center;
6 background-size: cover;
7}
1body {
2 background-position: center;
3 background-repeat: no-repeat;
4 background-size: contain;
5}