* finish task #4940.

module/project/view/create.html.php

@@ -147,7 +147,7 @@
         <tr>
           <td colspan='4' class='text-center form-actions'>
             <?php echo html::submitButton();?>
-            <?php echo html::backButton('', '', 'btn btn-wide');?>
+            <?php echo html::backButton();?>
           </td>
         </tr>
       </table>

module/project/view/edit.html.php

@@ -158,7 +158,7 @@
           <th><?php echo $lang->project->whitelist;?></th>
           <td colspan='2'><?php echo html::checkbox('whitelist', $groups, $project->whitelist, '', '', 'inline');?></td>
         </tr>
-        <tr><td colspan='3' class='text-center form-actions'><?php echo html::submitButton() . ' ' . html::backButton('', '', 'btn btn-wide');?></td></tr>
+        <tr><td colspan='3' class='text-center form-actions'><?php echo html::submitButton() . ' ' . html::backButton();?></td></tr>
       </table>
     </form>
   </div>

module/project/view/importbug.html.php

@@ -76,7 +76,7 @@ var browseType = '<?php echo $browseType;?>';
         <?php echo html::submitButton('<i class="icon icon-import icon-sm"></i> ' . $lang->import, '', 'btn btn-secondary');?>
       </div>
       <div class='btn-toolbar'>
-        <?php echo html::backButton();?>
+        <?php echo html::backButton('', '', 'btn');?>
       </div>
       <?php $pager->show('right', 'pagerjs');?>
     </div>

module/project/view/managemembers.html.php

@@ -120,7 +120,7 @@
         <?php $i ++; $memberCount ++;?>
         <?php endfor;?>
       </tbody>
-      <tfoot><tr><td colspan='6' class='text-center form-actions'><?php echo html::submitButton() . ' ' . html::backButton('', '', 'btn btn-wide'); ?></td></tr></tfoot>
+      <tfoot><tr><td colspan='6' class='text-center form-actions'><?php echo html::submitButton() . ' ' . html::backButton(); ?></td></tr></tfoot>
     </table>
     <?php js::set('i', $i);?>
   </form>