#time-bar{
  position: relative;
  width: 100%;
  height: auto;
  margin-top: 5%;
}
#progress_bar{
  position: absolute;
  z-index: 1;
  display: block;
  width: 100%;
  height: 10px;
  top: 3px;
  background-color: #cfcfcf;
}
#progress{
  height: 10px;
  width: 2px;
}
input[type=range]{
  position: relative;
  z-index: 2;
  -webkit-appearance: none;
  width: 100%;
  height: 12px;
  background: transparent;
  margin: 0;
  padding: 0;
}

input[type=range]::-webkit-slider-thumb{
  -webkit-appearance: none;
  z-index: 2;
}
input[type=range]:focus{
  outline: none;
}
input[type=range]:-ms-track{
  width: 100%;
  cursor: pointer;
  background: transparent;
  border-color: transparent;
  color: transparent;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance: none;
  border: 1px solid #000000;
  height: 12px;
  width: 6px;
  border-radius: 0px;
  background: #000000;
  cursor: pointer;
}
input[type=range]::-moz-range-thumb {
  border: 1px solid #000000;
  z-index: 2;
  height: 100%;
  width: 3px;
  border-radius: 0px;
  background: #000000;
  cursor: pointer;
}
input[type=range]::-ms-thumb {
  border: 1px solid #000000;
  height: 100%;
  width: 3px;
  border-radius: 0px;
  background: #000000;
  cursor: pointer;
}
@media only screen and (max-width: 720px){
  #time-bar{
    margin-bottom: 5%;
  }
}