admin bar submenu misaligned on mobile devices if the parent is not a link

[Chouby]

in admin-bar sub-menu is too high if the parent menu is not a link.

This can be fixed with the css rule:

@media screen and ( max-width: 782px ) {
	#wpadminbar .quicklinks .ab-empty-item,
	 {
		height: 46px;
	}

[Chouby]

Here is a proposal for a more complete fix to correct (horizontal) misalignement of the parent icon too:

@media screen and ( max-width: 782px ) {
	#wpadminbar .ab-icon {
		text-align: center;
	}

	#wpadminbar .quicklinks .ab-empty-item
	{
		height: 46px;
		padding: 0;
	}
}

I also noticed that the H of 'Howdy, user' is visible in the right corner. Here I have no pure CSS proposal without adding an html tag to wrap it.
in wp-includes/admin-bar.php:

	$howdy  = sprintf( __('<span>Howdy, %1$s</span>'), $current_user->display_name );

and the css rule

@media screen and ( max-width: 782px ) {
	#wpadminbar #wp-admin-bar-my-account > a span {
		display: none;
	}
}

[georgestephanis]

If it's done, the sprintf would probably be better as leaving the original line as

$howdy = sprintf( __('Howdy, %1$s'), $current_user->display_name );

to avoid needlessly breaking the translation strings, and changing the array item from

'title' => $howdy . $avatar,

to

'title' => sprintf( '<span>%1$s</span>%2$s', $howdy, $avatar ),

or

'title' => "<span>{$howdy}</span>{$avatar}",

[iammattthomas]

In 26595:

Add .ab-empty-item to the responsive adminbar sizing adjustments. Ensure that hidden text in responsive adminbar stays properly hidden in Firefox. See #26299.

[iammattthomas]

r26595 includes CSS fixes that should take care of the "H" in "Howdy" being visible in Firefox on small screens. I've also included .ab-empty-item in the standard responsive resizing rules for adminbar links, which should take care of the positioning issue. Chouby could you confirm this is now fixed?

[Chouby]

Yes. That's perfect now! The ticket can be closed.

@georgestephanis html tags in an internationalized string... I should have not been totally awaken when I wrote this :(