title: How to style u="#" in external stylesheet
body: <p>i am trying to remove the inline css and include it into a separate stylesheet. Since it is clear to use "#" and "." for id and class, how can i externally style the "u" as in sample below. Thx in advance for any help. </p>
  
  <pre><code>   &lt;div u="loading" style="position: absolute; top: 0px; left: 0px;"&gt;
          &lt;div style="filter: alpha(opacity=70); opacity:0.7; position: absolute; display: block;
  
              background-color: #000; top: 0px; left: 0px;width: 100%; height:100%;"&gt; 
          &lt;/div&gt; 
          &lt;div style="position: absolute; display: block; background: url(../img/loading.gif) no-repeat center center;
  
              top: 0px; left: 0px;width: 100%;height:100%;"&gt;
          &lt;/div&gt; 
      &lt;/div&gt; 
  </code></pre>