fix(cards): smooth collapse card - thanks @MartijnBastiaansen #378

Author: xidedix

pug/views/base/cards.pug

@@ -249,7 +249,8 @@ block view
                 i.icon-arrow-up
               a.card-header-action.btn-close(href='#')
                 i.icon-close
-          #collapseExample.card-body.collapse.show
+          #collapseExample.collapse.show
+            .card-body
             | Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
       // /.col
     // /.row

src/views/base/cards.html

@@ -300,8 +300,12 @@
             </a>
           </div>
         </div>
-        <div class="card-body collapse show" id="collapseExample">Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip
-          ex ea commodo consequat.</div>
+                  <div class="collapse show" id="collapseExample">
+                    <div class="card-body">
+                      Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex
+                      ea commodo consequat.
+                    </div>
+                  </div>
       </div>
     </div>
     <!-- /.col-->
@@ -328,4 +332,4 @@ <h4 class="modal-title">Modal title</h4>
     </div>
     <!-- /.modal-dialog-->
   </div>
-</div>
+</div>