7 body{
48 background-image:url("https://i2.hdslb.com/bfs/archive/865de1cf3a984e4863ec7da2a6987b6981969aa0.jpg");
49 background-repeat:no-repeat;
50 background-size:100%;
51 background-attachment: fixed;
52 filter:alpha(opacity=70); -moz-opacity:0.7; -khtml-opacity: 0.7; opacity: 0.7;
53 }