垂直居中一个div中的链接

I have an unordered list...

我有一个无序列表……

<ul class="hide">
  <li class="home">
    <div class="link">
      <a href="/go.html?url=/">Home</a>
    </div>
  </li>
  <li class="about">
    <div class="link">
      <a href="/go.html?url=/about">About Our Community</a>
    </div>
  </li>
  <li class="contact">
    <div class="link">
      <a href="/go.html?url=/contact">Contact Us</a>
    </div>
  </li>
</ul>
<ul