/* Controls */
#controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
}


/* Button */
.button {
  border: 0;
  background: transparent;
  height: 20px;
  width: 0;
  margin-right: -13px;
  overflow: hidden;
  border-color: transparent transparent transparent #202020;
  transition: 100ms all ease;
  cursor: pointer;
  outline: none;
}
.button.play {
  border-style: solid;
  border-width: 9px 0 9px 14px;
}
.button.pause {
  border-style: double;
  border-width: 0px 0 0px 14px;
}
.button:hover {
  border-color: transparent transparent transparent #404040;
}


/* Track Time */
.current-time, .total-duration {
  font-size: 14px;
  color: #fff;
  margin: 0;
}
.total-duration {
  font-weight: 700;
}


/* Input */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  position: absolute;
  left: -8px;
  bottom: 0;
  width: calc(100% - 45px);
  height: 100%;
  border-radius: 0px;
  background: 0;
  outline: none;
  opacity: 0.7;
  -webkit-transition: .2s;
  transition: opacity .2s;
  margin: 0;
}

input[type="range"]:focus {
outline: none;
}
input[type="range"]:hover {
  opacity: .3;
}

input[type="range"]::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
  height: 100%;
  border: 0;
  border-radius: 20px;
cursor: pointer;
position: relative;
transition: background 0.1s linear;
width: 15px;
z-index: 1;
  box-shadow: -407px 0 0 400px #708aa4;

}