Sidebar with grid layout

by Alessandro Vernet

HTML

<div class="a">
  <div class="b1"></div>
  <div class="b2"></div>
</div>

CSS

.a {
  height: 300px;
  width: 100px;
  background: #eee;
  padding: 10px;

  display: grid;
  grid-template-rows: 50px 1fr;
}

.b1 {
  background: #999;
}

.b2 {
  background: #aaa;
}