.pagetop {
    display: none;
    position: fixed;
    bottom: 50px;
    right: 10px;
}
.pagetop:hover {
    cursor:pointer;
    filter: alpha(opacity=60);
    -ms-filter: "alpha(opacity=60)";
    -moz-opacity:0.6;
    -khtml-opacity: 0.6;
    opacity:0.6;
    zoom:1;
}