title: No margin-bottom on bootstrap button?
body: <p>I’m using button element in a bootstrap template.</p>
  
  <p>I was wondering if it is the normal behavior in bootstrap :</p>
  
  <p>When there is not enough space to show all the buttons on one line, or when the window is resized, some buttons are shown on a 2nd line and it’s ok like that but there is no margin-bottom.</p>
  
  <p>I can add it :</p>
  
  <pre><code>.btn {
      margin-bottom: 5px; 
  }
  </code></pre>
  
  <p>But i find it strange that it is not handled by bootstrap.</p>
  
  <p>Maybe i’m doing something wrong ?</p>
  
  <p><strong>SOURCE</strong> : <a href="http://jsfiddle.net/Vinyl/zx9oefya/" rel="noreferrer">http://jsfiddle.net/Vinyl/zx9oefya/</a></p>
  
  <p><img src="https://i.stack.imgur.com/xNdMt.png" alt="enter image description here"></p>
  
  <pre><code>&lt;button type="button" class="btn btn-primary btn_plus_infos" data-toggle="collapse" data-target="#plus_infos"&gt;Plus d'infos&lt;/button&gt;
  &lt;button type="button" class="btn btn-primary btn_plus_infos" data-toggle="collapse" data-target="#plus_infos"&gt;Plus d'infos&lt;/button&gt;
  &lt;button type="button" class="btn btn-primary btn_plus_infos" data-toggle="collapse" data-target="#plus_infos"&gt;Plus d'infos&lt;/button&gt;
  </code></pre>