body {
  overflow: hidden;
}

input[type=range] {
    position: fixed;
    color: #333333;
    width: 135px;
    -webkit-appearance: none;
    height: 5px;
    border-radius: 5px;   
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}
  
  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    border-radius: 50%; 
    background: #1da7ea;
    cursor: pointer;
  }
  
  input[type=range]::-moz-range-thumb {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: #1da7ea;
    cursor: pointer;
  }