body {
  height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: gradientBackground 15s infinite linear;
  background-size: 200% 200%;
  background-image: linear-gradient(45deg, #df1b1a, #00a2e4, #3b3090, #680b0b,  #ff0000);
}
@keyframes gradientBackground {
  0% {
      background-position: 0% 75%;
  }
  25% {
      background-position: 25% 75%;
  }
  50% {
      background-position: 50% 75%;
  }
  75% {
      background-position: 75% 75%;
  }
  100% {
      background-position: 100% 75%;
  }
}
.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 360px;
  background: #111;
  box-shadow: 0 30px 20px -20px #000;
  box-sizing: border-box;
}
header {
  width: 100%;
  height: 2rem;
  line-height: 2rem;
  font-size: 1.2rem;
  padding: 1rem 2rem;
  clear: both;
  box-sizing: border-box;
}
header .playlist {
  float: left;
  cursor: pointer;
}
header .setting {
  float: right;
  cursor: pointer;
}
main {
  clear: both;
  padding: 1rem 2rem;
  box-sizing: border-box;
}
main .album-art {
  float: left;
  padding: 0.5rem;
  background: #000;
}
main .album-art img {
  width: 160px;
  border-radius: 8px;
  box-sizing: border-box;
}
main .player {
  position: relative;
  float: right;
  width: 176px;
  height: 176px;
  background: linear-gradient(0deg, #020a81, #111);
  border-radius: 100%;
  border: solid 2px #000;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 4px 2px rgba(0, 0, 0, 0.2);
}
main .player .fa {
  font-size: 1.2rem;
  position: absolute;
  cursor: pointer;
  transition: all 0.2s ease;
}

main .player .fa.fa-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 88px;
  height: 88px;
  border: solid 2px #000000;
  box-shadow: inset 0 1px 2px rgba(88, 6, 6, 0.2), 0 0 8px rgba(102, 6, 6, 0.911);
  border-radius: 100%;
  line-height: 88px;
  text-align: center;
  background: linear-gradient(0deg, #5f0404, #222);
  background-color: rgb(0, 0, 0);
	color: rgb(0, 255, 255);
}
main .player .fa.fa-repeat {
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
}
main .player .fa.fa-fast-backward {
  top: 50%;
  left: 8%;
  transform: translateY(-50%);
}
main .player .fa.fa-fast-forward {
  top: 50%;
  left: 82%;
  transform: translateY(-50%);
}
main .player .fa.fa-random {
  top: 82%;
  left: 50%;
  transform: translateX(-50%);
}
footer {
  clear: both;
  padding: 2rem 2rem;
  color: #999;
  text-shadow: 2px 2px #111;
  font-family: 'Roboto', sans-serif;
  box-sizing: border-box;
}
footer .title {
  text-align: center;
  padding-bottom: 0.5rem;
}
footer .time-tracker {
  border-top: solid 1px #000;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  padding-top: 0.5rem;
  box-sizing: border-box;
}
footer .time-tracker .timer {
  position: relative;
  float: center;
  width: 100%;
  height: 2rem;
}
footer .time-tracker .timer .bg {
  position: relative;
  top: 50%;
  margin-right: 0.5rem;
  transform: translateY(-50%);
  height: 0.6rem;
  border-top: solid 1px #000;
  border-radius: 10px;
  background: none;
  box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.2);
  overflow: hidden;
  box-sizing: border-box;
}
footer .time-tracker .timer .bg:before {
  content: "";
  top: 50%;
  transform: translateY(-50%);
  position: absolute;
  height: 0.2rem;
  border-radius: 10px;
  width: 50%;
  background: cyan;
  box-shadow: 0 0 2px 2px cyan;
}
footer .time-tracker .time {
  float: left;
  width: 10%;
  line-height: 2rem;
}
footer .time-tracker .duration {
  float: right;
  width: 10%;
  line-height: 2rem;
}