body {
    margin: 0;
    background-color: black;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    color: lime;
    overflow: hidden;
    position: relative;
    height: 100vh;
    width: 100vw;
}

#container {
    position: absolute;
    top: 0vh;
    left: 0vw;
    width: 100vw;
    height: 100vh;
}

pre {
    top: 30vh;
    left: 30vw;
    margin: 0;
    white-space: pre-wrap;
    position: relative;
    z-index: 2;
}

#rain-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.rain-drop {
    font-size: 16px;
    color: lime;
    position: absolute;
    white-space: nowrap;
    animation: rain linear infinite;
}

@keyframes rain {
  0% {
    transform: translateY(-100vh);
  }
  100% {
    transform: translateY(100vh);
  }
}