/* Round slider from 
   https://www.w3schools.com/howto/howto_js_rangeslider.asp */
   
.rangeslider {
    -webkit-appearance: none;
    width: 100%;
    height: 15px;
    border-radius: 5px;   
    background: #dddddd;
    outline: none;
    opacity: 1.0;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

.rangeslider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 50%; 
    background: #006699;
    cursor: pointer;
}

.rangeslider::-moz-range-thumb {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: #006699;
    cursor: pointer;
}