.slider::-webkit-slider-thumb
    {
        -webkit-appearance: none;
        appearance: none;
        width: 25px;
        height: 25px;
        background: #00AA00;
        cursor: pointer;
    }

    .slider::-moz-range-thumb
    {
        width: 25px;
        height: 25px;
        background: #00AA00;
        cursor: pointer;
    }