div class=“bubble-element Shape” style=“top: 161px; width: 15.4409px; left: 268.671px; position: absolute; box-sizing: border-box; z-index: 30; height: 10px; background-color: rgb(116, 116, 116); border-style: solid; border-width: 1px; border-color: rgb(116, 116, 116); border-radius: 10px;”>
//slider
.ui-corner-all {
border-radius: 99px;
}
how do i style this in css to appear behind my slider circle when it slides onto it