.ui-slider-tick-mark{
display:inline-block;
width:2px;
z-index: 5;
background:black;
height:16px;
position:absolute;
top:-4px;
}
.ui-slider-label-mark{
display:inline-block;
width:12px;
background:white;
height:16px;
position:absolute;
top:16px;
left:-15px;
}