unity.ubuntu.com search results aren’t clickable

1. On unity.ubuntu.com, search for anything. For example: <https://unity.ubuntu.com/?s=dash&x=0&y=0>
2. Try to click on any of the search results.

What happens: None of the search results can be followed.

What should happen: Clicking anywhere in a result goes to the relevant page.

The HTML markup for a search result is like this:

    <div id="post-352" class="… page …">
      <h2 class="entry-title"><a href="https://unity.ubuntu.com/getinvolved/testing/" title="Permalink to Testing" rel="bookmark">Testing</a></h2>
      <div class="entry-content">…</div>
    </div>

Unfortunately, <https://unity.ubuntu.com/wp-content/themes/unity-wordpress-theme/extra.css> line 148 says:

    .page > .entry-title
    {
        display: none;
    }

This hides the page titles from the search results, leaving nothing clickable behind.