2 background-attachment: fixed;
3 background-clip: border-box;
4 background-color: rgb(0,0,0);
5 background-origin: padding-box;
6 background-position: 50% 50%;
7 background-image: url("../img/web_background_3.jpg");
8 background-repeat: no-repeat;
9 background-size: cover;
12 background: none repeat scroll 0 0 rgba(0, 0, 0, 0.5);