title: making span tag cover entire width of div
body: <p>I have the following structure for html:-</p>
  
  <pre><code>&lt;div&gt;
    &lt;span&gt;
      &lt;a href="wherever"&gt;Wherever&lt;/a&gt;
    &lt;/span&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>If I want the span to cover the entire width of the div, how can I do that in chrome?</p>
  
  <p>I tried in css using</p>
  
  <pre><code>span{
    background:#FFF;
    width:100%;
  }
  </code></pre>
  
  <p>It works in firefox and ie but not in chrome.</p>