body {
  font-family: 'Muli', 'Helvetica Neue', helvetica, arial;
  max-width: 540px;
  margin: 0px auto;
  padding: 5px 0px;
}

.container {
  margin-right: auto;
  margin-left: auto;
  padding-left: 10px;
  padding-right: 10px;
}

.container:before,
.container:after {
  content: " ";
  display: table;
}

.control.left {
  float: left;
}

.control.right {
  float: right;
}

.sequencer {
  height: 50px;
  border-bottom: 1px solid lightgrey;
}

.bpm.control .actions {
  text-align: center;
}

.bpm.control .actions > button {
  width: 35px;
  border: 2px outset buttonface;
  text-align: center;
  cursor: default;
  box-sizing: border-box;
}

.headline {
  position: absolute;
  width: 100%;
  left: 0;
  padding: 0px;
  text-align: center;
  box-shadow: none;
  border: none;
  margin-left: 0px;
  z-index: -1;
}

.headline h1 {
  margin-top: 8px;
}

button.action {
  border-radius: 35px;
  height: 45px;
  padding: 5px;
  background-color: #fff;
  width: 45px;
  margin-left: 5px;
}

.pulse {
  background-color: #fff;
  display: inline-block;
  cursor: pointer;
  margin: 3px;
  width: 25px;
  height: 25px;
  border-radius: 15px;
}

.pulse.active {
  border-color: black;
}

.pulse.pulsing {
  height: 5px;
}

.track {
  padding: 15px 20px 0px;
  margin-bottom: 5px;
  color: #fff;
}

.track-header.left {
  float: left;
}

.track-header.right {
  float: right;
  position: relative;
}

.remove {
  font-size: 25px;
  position: absolute;
  top: -8px;
  right: 0;
  cursor: pointer;
}

.volume {
  margin-right: 25px;
}

.choose.track {
  text-align: center;
  padding-bottom: 15px;
}

.track-info {
  width: 100%;
}

.track-pulses {
  display: inline-block;
  margin: 0px;
  padding: 25px 0px;
}

ul {
  list-style-type: none;
  padding-left: 0;
}

li.track:nth-child(3n + 1) {
  background-color: #E91E63;
}

li.track:nth-child(3n + 1) .pulse {
  background-color: #F8BBD0;
}

li.track:nth-child(3n + 1) .pulse.active {
  background-color: #880E4F;
}

li.track:nth-child(3n + 2) {
  background-color: #3F51B5;
}

li.track:nth-child(3n + 2) .pulse {
  background-color: #C5CAE9;
}

li.track:nth-child(3n + 2) .pulse.active {
  background-color: #1A237E;
}

li.track:nth-child(3n + 3) {
  background-color: #00BCD4;
}

li.track:nth-child(3n + 3) .pulse {
  background-color: #B2EBF2;
}

li.track:nth-child(3n + 3) .pulse.active {
  background-color: #006064;
}

li.track:nth-child(3n + 4) {
  background-color: #8BC34A;
}

li.track:nth-child(3n + 4) .pulse {
  background-color: #DCEDC8;
}

li.track:nth-child(3n + 4) .pulse.active {
  background-color: #33691E;
}

li.track:nth-child(3n + 5) {
  background-color: #FFC107;
}

li.track:nth-child(3n + 5) .pulse {
  background-color: #FFECB3;
}

li.track:nth-child(3n + 5) .pulse.active {
  background-color: #FF6F00;
}

li.track:nth-child(3n + 6) {
  background-color: #FF5722;
}

li.track:nth-child(3n + 6) .pulse {
  background-color: #FFCCBC;
}

li.track:nth-child(3n + 6) .pulse.active {
  background-color: #BF360C;
}

footer {
  font-size: 12px;
}

/* Utils */

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

.hidden {
  display: none !important;
  visibility: hidden !important;
}