LayoutTests/fast/inline/blocks-in-inline-trailing-block-with-margin-expected.html

<style>
.container { 
  border: 1px solid green;
  background-color: green; 
  color: transparent;
}
.middle-block { 
  margin: 50px;
}
</style>
<div class=container>
  <span>
    span start
    <div class=middle-block>content</div>
  </span>
</div>