<!doctype html>
<meta charset="utf-8">
<title>CSS Test Reference</title>
<style>
html,body {
  color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
}

div {
  display: grid;
  height: 100px;
  background-color: lime;
}

table {
  padding-top: 100px;
  width: 500px;
  height: 100%;
  box-sizing: content-box;
  background-color: yellow;
}
</style>
<div>
  <table>
    <thead>
      <tr>
        <th>Relayout shouldn't grow this table</th>
      </tr>
    </thead>
  </table>
</div>