垂直居中1

flex + align-items

by DarcyAn

HTML

<div class="parent">
<div class="child">
child
</div>
</div>

CSS

.parent {
  display: flex;
  align-items: center;
  background: pink;
  width: 100px;
  height: 300px;
}
.child {
  padding:10px;
  background: #eee;
  width: 80px;
  height: 80px;
  line-height: 80px;
}