idth: 50px; height: 100px; border: 2px solid black">
  <div style="height: 50px; background: blue"></div>
</div>
<div class=spacer></div>
<div style="width: 200px; height: 100px; border: 2px solid black">
  <div style="height: 200px; background: blue"></div>
</div>
