* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    background-color: darkgreen;
}

.container {
    background-color: #fff;
    width: 90vmin;
    transform: translate(-50%,-50%);
    top: 50%;
    left: 50%;
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 30px 20px;
    border-radius: 5px;
}

input[type="range"] {
    position: relative;
    -webkit-appearance: none;
    -moz-appearance: none;
    display: block;
    width: 80%;
    height: 8px;
    background-color: #d5d5d5;
    border-radius: 8px;
    outline: none;
}

input[type="range"]::-webkit-slider-runnable-track{
    -webkit-appearance: none;
    height: 8px;
}
input[type="range"]::-moz-track{
    -moz-appearance: none;
    height: 8px;
}
input[type="range"]::-ms-track{
    appearance: none;
    height: 8px;
}
input[type="range"]::-webkit-slider-thumb{
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    background-color: darkgreen;
    border-radius: 50%;
    cursor: pointer;
    margin-top: -6px;
    border: none;
}
input[type="range"]::-moz-range-thumb{
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    background-color: darkgreen;
    border-radius: 50%;
    cursor: pointer;
    margin-top: -6px;
    border: none;
}
input[type="range"]::-ms-thumb{
    appearance: none;
    height: 20px;
    width: 20px;
    background-color: darkgreen;
    border-radius: 50%;
    cursor: pointer;
    margin-top: -6px;
    border: none;
}

input[type="range"]:active::-webkit-slider-thumb {
    background-color: #fff;
    border: 3px solid darkgreen;
}
#slider-value {
    width: 13%;
    position: relative;
    background-color: darkgreen;
    color: #fff;
    text-align: center;
    font-family: "Roboto Mono", monospace;
    padding: 10px 0;
    border-radius: 5px;
}