title: How to give an empty element some width and height?
body: <p>I have an empty element on my page that I'd like to give some width and height to.</p>
  
  <p>Here is a jsfiddle to illustrate: <a href="http://jsfiddle.net/tzxv5zb3/" rel="nofollow">http://jsfiddle.net/tzxv5zb3/</a></p>
  
  <p>As you will see, I've tried giving the element a style attribute with some values for width and height. For example:</p>
  
  <pre><code>&lt;span id="element-b" style="width: 100px; height: 20px; background-color: #555;"&gt; &lt;/span&gt;
  </code></pre>
  
  <p>However, this does nothing.</p>
  
  <p>How to give my empty element (<code>#element-b</code>) some width and height?</p>