#matrix {
  position: relative;
  width: 100%;
  height: 100vh;
  background-color: #000;
  font-family: monospace;
  font-size: 14px;
  line-height: 1.2;
  overflow: hidden;
}

.binary-star {
  position: absolute;
  top: 0;
  left: 0;
  color: #33ff33;
  animation: binary-star 3s linear infinite;
}

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