.typewriter {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  border-right: .15em solid #FFD700;
  animation: typing 3s steps(40, end), blink-caret .75s step-end infinite;
}

@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: #FFD700;
  }
}