.page-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px;
    background: #696969;
    border-radius: 30px;
    -webkit-border-radius: 30px;
    -moz-border-radius: 5px;
    width: 30px;
    height: 30px;

    line-height: 30px;
    font-size: 30px;
    color: #ffffff;
    -ms-filter: "alpha(opacity=80)";
    -moz-opacity: 0.6;
    -khtml-opacity: 0.6;
    opacity: 0.6;
}