*,
*:before,
*:after{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    outline: none;
}
body{
    height: 100vh;
    background: linear-gradient(
        -135deg,
        #0048ce,
        #008bfd
    );
}
.container{
    width: 40%;
    min-width: 450px;
    background-color: #1c1e21;
    padding: 80px 30px;
    position: absolute;
    transform: translate(-50%,-50%);
    top: 50%;
    left: 50%;
    border-radius: 8px;
    box-shadow: 0 15px 20px rgba(0,0,0,0.15);
}
#output{
    background-color: transparent;
    border:none;
    border-bottom: 2px solid #e2e2e2;
    width: 75%;
    height: 35px;
    padding: 20px 5px;
    font-family: 'Roboto Mono', monospace;
    color: #f5f5f5;
    font-size: 18px;
    letter-spacing: 1px;
}
button{
    width: 11%;
    height: 38px;
    background-color: transparent;
    border: none;
    color: #ffffff;
    font-size: 18px;
    float: right;
    text-align: right;
    cursor: pointer;
}
input[type="range"]{
    -webkit-appearance: none;
    appearance: none;
    width: 85%;
    height: 3.5px;
    margin-top: 80px;
    background-color: #e2e2e2;
    border-radius: 3.5px;
}
input[type="range"]::-webkit-slider-thumb{
    -webkit-appearance: none;
    appearance: none;
    height: 20px;
    width: 20px;
    background-color: #008bfd;
    border-radius: 50%;
}
h3{
    font-family: 'Roboto Mono',sans-serif;
    display: inline-block;
    width: 10%;
    color: #1c1e21;
    background-color: #ffffff;
    text-align: center;
    padding: 5px 0;
    margin-left: 3%;
    border-radius: 3px;
    font-size: 18px;
}