Minor - Fix button style - refs #7539

main/course_info/delete_course.php

@@ -44,7 +44,7 @@ if (isset($_GET['delete']) && $_GET['delete'] == 'yes') {
     $message = '<h3>'.get_lang('Course').' : '.$current_course_name.' ('.$current_course_code.') </h3>';
     $message .= '<p>'.get_lang('ByDel').'</p>';
     $message .= '<p><a class="btn btn-primary" href="'.api_get_path(WEB_CODE_PATH).'course_info/maintenance.php?'.api_get_cidreq().'">'.
-        get_lang('No').'</a>&nbsp;<a class="btn" href="'.api_get_self().'?delete=yes&'.api_get_cidreq().'">'.
+        get_lang('No').'</a>&nbsp;<a class="btn btn-danger" href="'.api_get_self().'?delete=yes&'.api_get_cidreq().'">'.
         get_lang('Yes').'</a></p>';
 	$interbreadcrumb[] = array('url' => 'maintenance.php', 'name' => get_lang('Maintenance'));
 }