title: jQuery animate width from centered x coordinates of the element
body: <p>Is possible to <code>animate()</code> the width of an element making a smooth center animation? </p>
  
  <p>I mean animate making the element fixed on itself centered on himself x coordinates? </p>
  
  <p>if i do :</p>
  
  <pre><code>&lt;a class="animate"&gt;hey&lt;/a&gt;
  $('.animate').animate({'width':'+=1%'},500);
  </code></pre>
  
  <p>it works but the element is animated on the right and not from the center of himself</p>