    background: #424242;
  }
  .black {
    background: #000000;
  }
  .lightred {
    background: #ffcdd2;
  }
  .lightyellow {
    background: #ffecb3;
  }
  .lightgreen {
    background: #dcedc8;
  }
  .lightblue {
    background: #e3f2fd;
  }
  .lightpurple {
    background: #f3e5f5;
  }
  .red {
    background: #f44336;
  }
  .orange {
    background: #ff9800;
  }
  .yellow {
    background: #ffeb3b;
  }
  .green {
    background: #4caf50;
  }
  .blue {
    background: #2196f3;
  }
  .purple {
    back