body {
    font-family: 'Consolas', monospace;
    font-weight: 300;
}

.rain-drop {
  position: fixed;
  width: 2px;
  height: 20px;
  animation: fall linear infinite;
  left: 0;
  top: -50px;
  z-index: 1;
}
@keyframes fall {
  to { transform: translateY(100vh); }
}