body
{
      background-color: #181828;
}
.wrapper {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.typing-demo {
  width: 50ch;
  animation: typing 4s steps(50), blink .5s step-end infinite alternate;
  white-space: nowrap;
  overflow: hidden;
  border-right: 3px solid;
  font-family: monospace;
  font-size: 2em;
  color: #5D7;
}

@keyframes typing {
  from {
    width: 0
  }
}
    
@keyframes blink {
  50% {
    border-color: transparent
  }
}