test

www/index.html

             <div class="modal-header">
               <div class="modal-titel">
                 <h5>Document</h5>
-                <div class="btn-group" role="group" aria-label="Basic example">
-                  <button type="button" class="btn btn-secondary">Left</button>
-                  <button type="button" class="btn btn-secondary">Middle</button>
-                  <button type="button" class="btn btn-secondary">Right</button>
-                </div>
               </div>
             </div>
           </div>