.ui-state-default {
    background:black;
    width:48px;
    height:9px;
    display:block;
    position:absolute;
    margin-top:-4px;
    outline:none;
}

.ui-state-default:hover {
    box-shadow:2px 2px 2px rgba(0,0,0,0.2);
}
    
.ui-slider {
    border-top:solid black 1px;
    position:relative;
}