input[type=range] {
    box-sizing: border-box;
    appearance: none;
    width: 400px;
    margin: 0;
    padding: 0;
    /* Add some L/R padding to ensure box shadow of handle is shown */
    overflow: hidden;
    border: 0;
    border-radius: 1px;
    outline: none;
    background: linear-gradient(grey, grey) no-repeat center;
    /* Use a linear gradient to generate only the 2px height background */
    background-size: 100% 2px;
    pointer-events: none;
 }
 
 input[type=range]:active,
 input[type=range]:focus {
    outline: none;
 }
 
 input[type=range]::-webkit-slider-thumb {
    height: 28px;
    width: 28px;
    border-radius: 28px;
    background-color: #fff;
    position: relative;
    margin: 5px 0;
    /* Add some margin to ensure box shadow is shown */
    cursor: pointer;
    appearance: none;
    pointer-events: all;
    box-shadow: 0 1px 4px 0.5px rgba(0, 0, 0, 0.25);
 }
 
 input[type=range]::-webkit-slider-thumb::before {
    content: ' ';
    display: block;
    position: absolute;
    top: 13px;
    left: 100%;
    width: 2000px;
    height: 2px;
 }
 
 .multi-range {
    position: relative;
    height: 50px;
 }
 
 .multi-range input[type=range] {
    position: absolute;
 }
 
 .multi-range input[type=range]:nth-child(1)::-webkit-slider-thumb::before {
    background-color: red;
 }
 
 .multi-range input[type=range]:nth-child(2) {
    background: none;
 }
 
 .multi-range input[type=range]:nth-child(2)::-webkit-slider-thumb::before {
    background-color: grey; 
 }
 
 .indices{
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 75%;
      height: 80px;
      margin-top: 70px;
      font-size: 4em;
      color: var(--main);
 }