topdown centerize

vertical-align

by ilake

HTML

<div class="block big"></div>
  <div class="block small"></div>

CSS

.block {
  display: inline-block;
  vertical-align: middle;
}
.big {
  width: 300px;
  height: 300px;
  background-color: red;
  
}

.small {
  width: 100px;
  height: 100px;
  background-color: blue;
}