<!DOCTYPE html>
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10043#issuecomment-2165291421">
<link rel="match" href="scrollbar-container-units-block-ref.html">
<style>
.container {
  display: inline-block;
  border: solid 3px cornflowerblue;
  width: 100px;
  height: 100px;
  container-type: size;
}
div > div {
  box-sizing: border-box;
  width: 200px;
  height: 100cqh;
  border: solid 10px orange;
}
</style>
<div class="container" style="overflow-x: scroll;">
  <div></div>
</div>
<div class="container" style="overflow-x: auto;">
  <div></div>
</div>