This page tests the OneCol New containers with different styles and permission/visibility settings.

Some Text

Below are block control rows.   This particular line is long enough to test how breakable text wraps.
Super admin: ?module=administrationmodule&action=superadmin

Debug Mode On: ?action=switch&module=uiswitchermodule&uilevel=4&adminmenu=unchanged&edit=unchanged&editsides=unchanged

See the terse form of this page: ?debuglayout=containers 

Have blocks that are logged in and not logged in

Now have 3+ hidden elements. Lets see if they add spacing.

Be sure to also try it with bars enabled, to be sure that we do not get 3 bars.

The 3 hidden blocks are above. What spacing did we see?

Insert some blocks below that come and go based on width.

Make sure we do not have odd bars or spacing.