tton>
         <button type="button" class="btn btn-primary">Middle</button>
         <button type="button" class="btn btn-primary">Right</button>
      </div>
   </div>
   <pre class="prettyprint linenums">
   &lt;div class="btn-group" data-toggle="buttons-checkbox"&gt;
     &lt;button type="button" class="btn btn-primary"&gt;Left&lt;/button&gt;
     &lt;button type="button" class="btn btn-primary"&gt;Middle&lt;/button&gt;
     &lt;button type="button" class="btn btn-primary"&gt;Right&lt;/button&gt;
   &lt