#slider{-webkit-appearance:none}input[type=range]::-webkit-slider-runnable-track{border-radius:20px;height:20px;border:1px solid #000;background-color:#ccc}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background-color:#000;border:3px solid #0b6b00;width:20px;height:20px;border-radius:20px;cursor:pointer;margin-top:0}