Bu CSS'i dener misin?

#header .video a{background-image: url("http://i.imgur.com/9fxwdWF.png");width:100px;height:100px;float:left;display:block;margin-right:5px;position:absolute;}
#header .video a:hover {background-image: url("http://i.imgur.com/tUbxbak.png");width:100px;height:100px;}