.sterren{
        width:80px;
        height:16px;
        margin:0 0 20px 0;
        padding:0;
        list-style:none;
        clear:both;
        position:relative;
        background:url("http://www.massageplein.nl/mod/overview/images/stemmen.png") no-repeat 0 0;
}
    .s0star {background-position:0 0}
    .s1star {background-position:0 -16px}
    .s2star {background-position:0 -32px}
    .s3star {background-position:0 -48px}
    .s4star {background-position:0 -64px}
    .s5star {background-position:0 -80px}
    ul.sterren li {cursor:pointer;float:left;text-indent:-999em;}
    ul.sterren li a {
        position:absolute;
        left:0;
        top:0;
        width:16px;
        height:16px;
        text-decoration:none;
        z-index:200;
}
    ul.sterren li.s1 a {left:0}
    ul.sterren li.s2 a {left:16px;}
    ul.sterren li.s3 a {left:32px;}
    ul.sterren li.s4 a {left:48px;}
    ul.sterren li.s5 a {left:64px;}
    ul.sterren li a:hover {
        z-index:2;
        width:80px;
        height:16px;
        overflow:hidden;
        left:0;
        background:url("http://www.massageplein.nl/mod/overview/images/stemmen.png") no-repeat 0 0;
}
    ul.sterren li.s1 a:hover {background-position:0 -96px;}
    ul.sterren li.s2 a:hover {background-position:0 -112px;}
    ul.sterren li.s3 a:hover {background-position:0 -128px}
    ul.sterren li.s4 a:hover {background-position:0 -144px}
    ul.sterren li.s5 a:hover {background-position:0 -160px}