body {
  margin: 0;
  padding: 0;
  background: black;
  overflow: hidden;
  font-family: monospace;
}

#matrix {
  position: absolute;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.matrix-column {
  position: absolute;
  top: 0;
  white-space: nowrap;
  font-size: 20px;
  color: #00ff00;
}

.matrix-column span {
  display: block;
}

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