.slider {
    -webkit-appearance: none;
    width: 80%;
    height: 15px;
    border-radius: 5px;   
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

.slider:hover {
    opacity: 1;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 50%; 
    background: #333;
    z-index: 9999 !important;
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: #333;
    cursor: pointer;
}

#box{
    margin-top: 2vh;
    width: auto;
    display: inline-block;
    padding: 7.5px;
    padding-left: 20px;
    padding-right: 20px;
    border-radius: 10px;
    background-color: #d3d3d3;
    box-shadow: 0px 0px 10px 5px gray;
    border: 2px solid gray;
    color: #333;
    font-size: 3vw;
    font-weight: 900;
}

#slider-ust{
    color: white;
    font-style: italic;
}
@media (min-width:100px) and (max-width:480px) {

#box{
    padding: 4px;
    padding-left: 20px;
    padding-right: 20px;
	font-size: 20px;
}

}