title: grab a div and attach a class jQuery
body: <p>How can I grab this <code>#one-id</code> and attach a this <code>.myclass</code> to it using jQuery?</p>
  
  <pre><code>#one-id {
  width: 120px;
  height: 40px;
  float: left;
  padding: 10px;
  margin: 10px;
  background-color: #EEEEEE;
  }
  .myclass {border: 13px solid red}
  
  &lt;div id="one-id"&gt;CLASS&lt;/div&gt;
  </code></pre>
  
  <p><a href="http://jsfiddle.net/ynn5c/" rel="nofollow">FIDDLE HERE</a></p>