body{font-family:arial;font-size:13px;color:red;}
#wrapper{width:80%;height:600px; left top no-repeat;margin:10px auto;}
#header{width:100%;height:60px;background:grey;}
#content{width:100%;height:500px;background:URL("light-background-hd-wallpaper-preview.jpg") center top no-repeat;}
#footer{width:100%;height:60px;background:orange;}