CodePen Embed - verticle center inline elements2

<div>
  <span>这是一个居中的段落。</span>
</div>

div {
  background: black;
  color: white;
  height: 100px;
  line-height: 100px;
}

This Pen is owned by Pengfei Wang on CodePen.

This Pen doesn't use any external CSS resources.

This Pen doesn't use any external JavaScript resources.