-<%= content_for :content_top %>
-<br clear="all" />
-<div class="pull-right">
- <%= content_for :tab_line_buttons %>
+<%# Copyright (C) The Arvados Authors. All rights reserved.
+
+SPDX-License-Identifier: AGPL-3.0 %>
+
+<div class="clearfix">
+ <%= content_for :content_top %>
+ <div class="pull-right">
+ <%= content_for :tab_line_buttons %>
+ </div>