.ui-slider-handle {
    cursor: pointer;
    margin: 0 0 0 -10px;
    padding: 0 10px;
    position: absolute;
    text-align: center;
    text-indent: 0;
    top: -10px;
    z-index: 2;
}

span {
    background: none repeat scroll 0 0 #373737;
    display: inline-block;
    height: 20px;
    width: 3px;
}