LayoutTests/fast/inline/empty-inline-box-stretches-container.html

<style>
.container {
  background-color: green;
}

.margin { 
  margin-bottom: 100px;
  width: 50px;
  height: 50px;
  background-color: blue;
}

</style>
<div class=container>
  <span>
    <div class=margin></div>
    <div></div>
    <span></span>
  </span>
</div>