index.css

#content {
    z-index: 10;
  }
  #overlay {
    z-index: 20;
  }
  
  #container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  #container p {
    font-size: 4vw;
    padding: 1em;
    text-align: center;
    user-select: none;
  }
  
  #media {
    position: absolute;
    right: 10px;
    bottom: 30px;
    background: rgba(0,0,0,0.2);
  }
  
  #meta {
    position: absolute;
    left: 10px;
    top: 10px;
    padding: 5px;
    background: rgba(0,0,0,0.2);
  }
  
  #control {
    position: absolute;
    left: 10px;
    bottom: 30px;
    padding: 5px;
    background: rgba(0,0,0,0.2);
  }
  
  #control > button {
    margin-right: 5px;
  }
  #control > button:last-child {
    margin-right: 0;
  }
  
  #beatbar {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 20px;
    background: #000;
  }