uid">
  <div class="span6">
    <form>
      <div class="controls">
        <div class="input-prepend">
          <span class="add-on">@</span><input class="span2" id="prependedInput" size="16" type="text">
        </div>
      </div>
      <div class="controls">
        <div class="input-append">
          <input class="span2" id="prependedInput" size="16" type="text"><span class="add-on">@</span>
        </div>
      </div>
      <div class="controls">
        <div class="input-prepend input-append">
    