[wp-trac] [WordPress Trac] #64796: Buttons output in `extra_tablenav` are too tall

[WordPress Trac]

#64796: Buttons output in `extra_tablenav` are too tall
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 Reporter:  johnbillion             |       Owner:  (none)
     Type:  defect (bug)            |      Status:  new
 Priority:  normal                  |   Milestone:  7.0
Component:  Administration          |     Version:  trunk
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch admin-reskin  |     Focuses:  css
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Comment (by abdullah17):

 Tested the patch from PR #11224 in a local environment.

 Setup:
 - WordPress trunk (7.0-beta / latest develop)
 - Multisite enabled
 - No additional plugins active (clean install)
 - Browser: Chrome (Version 145.0.7632.162 (Official Build) (arm64))

 Steps to reproduce:
 1. Used the provided `dummy-list-table.php` attachment from the ticket.
 2. Added it as a plugin and activated it.
 3. Accessed the page via Tools → Dummy List Table.
 4. Observed the button output from `extra_tablenav()` (without `.actions`
 wrapper).

 Results before patch: [https://ibb.co/HDDd7g3M]
 - The "Export" button rendered in the top `.tablenav` appears slightly
 misaligned compared to standard admin buttons.

 Patch testing: [https://ibb.co/JjgWwV7g]
 - Applied the patch manually to `src/wp-admin/css/forms.css`.
 - Rebuilt assets using `npm run build`.
 - Performed a hard refresh to ensure updated CSS is loaded.

 Results after patch: [https://ibb.co/7xdy8Z3k]
 - The button inside `.tablenav` (even without `.actions` wrapper) is
 styled consistently.
 - Height, line-height, and alignment match other core buttons.
 - Verified in both top and bottom `.tablenav`.

 Additional checks:
 - Tested buttons inside `.actions` wrapper (control case) — no regression
 observed.
 - Checked other admin screens (Posts list table, Users screen) — no visual
 regressions observed.

 Conclusion:
 The patch resolves the inconsistency by ensuring buttons within
 `.tablenav` receive consistent styling regardless of markup structure.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64796#comment:9>
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