<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<style>
  .box {
      height: 80px;
      margin-bottom: 10px;
      border: 10px solid hotpink;
      background: yellow;
  }
  .skip-start {
      border-left: none;
  }
  .skip-end {
      border-right: none;
  }
</style>
<p>There should be a yellow box that starts in the first column and ends in the
  third. The block-start border should be in the first column, and the block-end
  border should be in the t