<!DOCTYPE HTML>
<style>
.container {
  width: 200px;
  height: 300px;
  background-color: blue;
}
.item {
  background-color: green;
  border: solid thin blue;
  align-self: stretch;
}
</style>
There should be no invalidations when align-self changes on a non-flex container.
<div id="container">
  <div class="item">
    <div style="height: 100px"></div>
  </div>
  <div class="item">
    <div style="height: 150px"></div>
  </div>
</div>