flex gr

by Spencer Wasden

HTML

<div class="container">

  <div class="a">
a
  </div>
  
  <div class="b">
b
  </div>

</div>

CSS

.container{
  display: flex;
  flex-direction: column;
  height: 95vh;
  width: 95vw;
}

.a{
  background-color: lightblue;
  flex: 1 0;
}
.b{
  background-color: lightgreen;
  flex: 1 0;
}