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

<style>
.middle-block {
  border: 1px solid blue;
  width: 100px;
  height: 100px;
  margin: 10px 20px 30px 40px;
}
</style>
<div>
  <span>
    span<br>start
    <div class=middle-block></div>
    span<br>end
  </span>
</div>

<div dir=rtl>
  <span>
    span<br>start
    <div class=middle-block></div>
    span<br>end
  </span>
</div>