title: Bootstrap - gap between input text field and button
body: <p>This my code <a href="http://jsbin.com/ixevaw/1/edit" rel="nofollow">http://jsbin.com/ixevaw/1/edit</a></p>
  
  <pre><code>&lt;div class="input-append"&gt;
     &lt;input type="search" class="span3" placeholder="Search" name="search" id="search"/&gt;
     &lt;button class="btn"&gt;button&lt;/button&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>But there is a gap between text field and button in safari and IE9</p>
  
  <p>How can i remove this gap?</p>