body {
  margin: 0;
  background-color: #000;
  overflow: hidden;
  font-family: sans-serif;
  color: #9DD0E0;
}

.horizontal-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.transparent {
  opacity: 0;
}

#header {
  height: 100%;
  width: 100%;
}

#kodama-graphic {
  height: 100%;
  opacity: 0;
}

.controls {
  position: fixed;
  bottom: 20px;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  text-align: center;
}
.controls .btn {
  position: relative;
  cursor: pointer;
  opacity: 0.25;
}
.controls .btn .btn-label {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  margin: 0;
  margin-top: 5px;
}
.controls .mute-btn {
  float: left;
  margin-left: 30px;
}
.controls .replay-btn {
  float: right;
  margin-right: 30px;
}