input[type=range] {
    appearance: none;
    -webkit-appearance: none;
    height: 10px;
    background-image: url("/images/bar.png");
    background-size: contain;
    background-repeat: repeat;
}

input[type=range]::-webkit-slider-thumb {
   -webkit-appearance: none;
   appearance: none; 
   height: 30px;
   width: 30px;
   background-image: url("/favicon.png");
   background-size: 100% 100%;
   background-position: center center;
   background-repeat: no-repeat;
   border-radius: 50%;
   border: none;
 }