<div class="typing">
    <p>PENGIN BLOG</p>
</div>

/****タイピングアニメーション****/
.typing {
  width: 13ch;
  animation: typing 2s steps(13), cursor .5s step-end infinite alternate;
  white-space: nowrap;
  overflow: hidden;
  border-right: 1px solid;
  font-family: "Courier New", Monaco, monospace;
}

@keyframes typing {
  0% {
    width: 0;
  }
  100% {
    width: 13ch;
  }
}
@keyframes cursor {
  50% {
    border-color: transparent;
  }
}