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Global Styles: Fix block custom CSS pseudo element selectors #63980

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merged 6 commits into from
Jul 31, 2024

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Fixes: #63932

What?

Fixes two problems with custom css for blocks:

  1. Empty CSS rules
  2. Malformed selectors with pseudo elements within :where()

Why?

  • Empty rules are wasted data
  • Malformed CSS selectors cause styles not to match and take effect

How?

When processing custom CSS for blocks, strip out pseudo-elements from the original nested selector, perform the required wrapping in :root :where, then re-append the pseudo-element selector with its leading combinators if present.

Testing Instructions

  1. In the site editor navigate to Styles > Blocks > Heading > Advanced
  2. In the custom CSS field add the following snippet: &::before { content: 'Foo' }
  3. The word "Foo" should be visible before any heading block on the page
  4. Save the Global Styles and confirm the display of the pseudo-element on the front end

Screenshots or screencast

Before After
Screenshot 2024-07-26 at 10 22 19 AM Screenshot 2024-07-26 at 3 09 48 PM
Before After
Screenshot 2024-07-26 at 3 07 50 PM Screenshot 2024-07-26 at 3 09 01 PM

@aaronrobertshaw aaronrobertshaw added [Type] Bug An existing feature does not function as intended Global Styles Anything related to the broader Global Styles efforts, including Styles Engine and theme.json labels Jul 26, 2024
@aaronrobertshaw aaronrobertshaw self-assigned this Jul 26, 2024
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github-actions bot commented Jul 26, 2024

Size Change: +72 B (0%)

Total Size: 1.76 MB

Filename Size Change
build/block-editor/index.min.js 254 kB +72 B (+0.03%)
ℹ️ View Unchanged
Filename Size
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Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: dballari <dballari@git.wordpress.org>
Co-authored-by: wongjn <wongjn@git.wordpress.org>

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Backport is available in WordPress/wordpress-develop#7097.

@aaronrobertshaw aaronrobertshaw added the Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release label Jul 26, 2024
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I only had a chance for a quick skim through the code and smoke test, but this is working nicely for me and seems a good direction for a fix.

Before After
image image

It might be worth getting a second set of 👀 before landing just in case, but LGTM! 🚀

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harlet commented Jul 26, 2024

I'm writing from mobile as this goes so fast and I don't know if I get to test before you merge.
Does this also take into account this case where we have '& + &{}'
Now it transforms into ':root :where(+){}'

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Good question @harlet 👍

Does this also take into account this case where we have '& + &{}'

This PR does not take into account the proposed selector. It only fixes two issues noted in the description.

  • Empty CSS rule
  • Invalid selectors with pseudo elements inside :where

Now it transforms into ':root :where(+){}'

A compound selector with two & parts has not previously been supported.

I confirmed this on a site using a vanilla WP 6.5.5 install and no plugins. Using a custom css snippet such as & + &{content: "hi! "} on the Heading block results in the following CSS .wp-block-heading{}.wp-block-heading{+}.wp-block-heading{content: "hi! "} in 6.5.5.

To my knowledge, the custom CSS feature in Global Styles wasn't meant as a complete 1:1 replacement for CSS stylesheets as it isn't really feasible here to re-implement the entire CSS spec.

@aaronrobertshaw aaronrobertshaw force-pushed the fix/block-custom-css-pseudo-element-selectors branch from 7ee3d8c to b7b61ed Compare July 30, 2024 06:09
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I've specifically tested pseudo elements, with several variants ::before, ::first-letter, ::selection

Also tested some nested rules (e.g., $.test {}) to ensure they still work

CSS before

:root :where(.wp-block-heading){}:root :where(.wp-block-heading::before ){content: 'Foo'}
Screenshot 2024-07-30 at 6 47 46 PM

After

:root :where(.wp-block-heading)::before{content: 'Foo'}

Screenshot 2024-07-30 at 6 48 06 PM

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Thanks for the reviews and testing 🙇

I'll get this merged so it is one step closer for the next point release.

@aaronrobertshaw aaronrobertshaw merged commit 245248e into trunk Jul 31, 2024
63 checks passed
@aaronrobertshaw aaronrobertshaw deleted the fix/block-custom-css-pseudo-element-selectors branch July 31, 2024 03:31
@github-actions github-actions bot added this to the Gutenberg 19.0 milestone Jul 31, 2024
pento pushed a commit to WordPress/wordpress-develop that referenced this pull request Aug 14, 2024
Fixes a regression introduced in [58241] where selectors with pseudo elements are wrapped within `:where()` causing malformed CSS and the CSS rule(s) not being applied.

When processing custom CSS for blocks, this changeset:

* Strips the pseudo-elements from the original nested selector, performs the required wrapping in `:root :where`, then re-appends the pseudo-element selector with its leading combinators if present.
* Removes empty CSS rules.

It includes the PHP changes.

Reference:
* PHP changes from [WordPress/gutenberg#63980 Gutenberg PR 63980].

Follow-up to [58241], [56812], [55216].

Props aaronrobertshaw, wongjn, harlet7, dballari, ramonopoly, andrewserong, aristath, hellofromTonya.
Fixes #61769.

git-svn-id: https://develop.svn.wordpress.org/trunk@58896 602fd350-edb4-49c9-b593-d223f7449a82
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PHP changes committed to WordPress Core's trunk via https://core.trac.wordpress.org/changeset/58896

markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Aug 14, 2024
Fixes a regression introduced in [58241] where selectors with pseudo elements are wrapped within `:where()` causing malformed CSS and the CSS rule(s) not being applied.

When processing custom CSS for blocks, this changeset:

* Strips the pseudo-elements from the original nested selector, performs the required wrapping in `:root :where`, then re-appends the pseudo-element selector with its leading combinators if present.
* Removes empty CSS rules.

It includes the PHP changes.

Reference:
* PHP changes from [WordPress/gutenberg#63980 Gutenberg PR 63980].

Follow-up to [58241], [56812], [55216].

Props aaronrobertshaw, wongjn, harlet7, dballari, ramonopoly, andrewserong, aristath, hellofromTonya.
Fixes #61769.
Built from https://develop.svn.wordpress.org/trunk@58896


git-svn-id: http://core.svn.wordpress.org/trunk@58292 1a063a9b-81f0-0310-95a4-ce76da25c4cd
github-actions bot pushed a commit to platformsh/wordpress-performance that referenced this pull request Aug 14, 2024
Fixes a regression introduced in [58241] where selectors with pseudo elements are wrapped within `:where()` causing malformed CSS and the CSS rule(s) not being applied.

When processing custom CSS for blocks, this changeset:

* Strips the pseudo-elements from the original nested selector, performs the required wrapping in `:root :where`, then re-appends the pseudo-element selector with its leading combinators if present.
* Removes empty CSS rules.

It includes the PHP changes.

Reference:
* PHP changes from [WordPress/gutenberg#63980 Gutenberg PR 63980].

Follow-up to [58241], [56812], [55216].

Props aaronrobertshaw, wongjn, harlet7, dballari, ramonopoly, andrewserong, aristath, hellofromTonya.
Fixes #61769.
Built from https://develop.svn.wordpress.org/trunk@58896


git-svn-id: https://core.svn.wordpress.org/trunk@58292 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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Thank you for committing this one @hellofromtonya 🙇

vcanales pushed a commit that referenced this pull request Sep 4, 2024
Unlinked contributors: harlet.

Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: dballari <dballari@git.wordpress.org>
Co-authored-by: wongjn <wongjn@git.wordpress.org>
pento pushed a commit to WordPress/wordpress-develop that referenced this pull request Sep 4, 2024
Fixes a regression introduced in [58241] where selectors with pseudo elements are wrapped within `:where()` causing malformed CSS and the CSS rule(s) not being applied.

When processing custom CSS for blocks, this changeset:

* Strips the pseudo-elements from the original nested selector, performs the required wrapping in `:root :where`, then re-appends the pseudo-element selector with its leading combinators if present.
* Removes empty CSS rules.

It includes the PHP changes.

Reference:
* PHP changes from [WordPress/gutenberg#63980 Gutenberg PR 63980].

Follow-up to [58241], [56812], [55216].

Reviewed by andrewserong.
Merges [58896] to the 6.6 branch.

Props aaronrobertshaw, wongjn, harlet7, dballari, ramonopoly, andrewserong, aristath, hellofromTonya.
Fixes #61769.

git-svn-id: https://develop.svn.wordpress.org/branches/6.6@58987 602fd350-edb4-49c9-b593-d223f7449a82
markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Sep 4, 2024
Fixes a regression introduced in [58241] where selectors with pseudo elements are wrapped within `:where()` causing malformed CSS and the CSS rule(s) not being applied.

When processing custom CSS for blocks, this changeset:

* Strips the pseudo-elements from the original nested selector, performs the required wrapping in `:root :where`, then re-appends the pseudo-element selector with its leading combinators if present.
* Removes empty CSS rules.

It includes the PHP changes.

Reference:
* PHP changes from [WordPress/gutenberg#63980 Gutenberg PR 63980].

Follow-up to [58241], [56812], [55216].

Reviewed by andrewserong.
Merges [58896] to the 6.6 branch.

Props aaronrobertshaw, wongjn, harlet7, dballari, ramonopoly, andrewserong, aristath, hellofromTonya.
Fixes #61769.
Built from https://develop.svn.wordpress.org/branches/6.6@58987


git-svn-id: http://core.svn.wordpress.org/branches/6.6@58383 1a063a9b-81f0-0310-95a4-ce76da25c4cd
talldan added a commit that referenced this pull request Sep 4, 2024
* Fix canvas issues by removing VisualEditor’s height (#63724)

Unlinked contributors: wp-seopress.

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: carolinan <poena@git.wordpress.org>

* Post Editor: Prevent popover from being hidden by metabox (#63939)

* Post Editor: Prevent popover from being hidden by metabox

* Use `.interface-interface-skeleton__content` instead of `.interface-interface-skeleton__body`

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: stokesman <presstoke@git.wordpress.org>
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: Rishit30G <rishit30g@git.wordpress.org>
Co-authored-by: dhananjaykuber <dhananjaykuber@git.wordpress.org>

* Global Styles: Fix block custom CSS pseudo element selectors (#63980)

Unlinked contributors: harlet.

Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: dballari <dballari@git.wordpress.org>
Co-authored-by: wongjn <wongjn@git.wordpress.org>

* Avoid errors for post types without a 'menu_icon' (#64015)


Unlinked contributors: karan4official.

Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>

* Data Views: Don't render action modal when there are no eligible items (#64250)


Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: youknowriad <youknowriad@git.wordpress.org>

* Post editor: apply space below content using a pseudo-element instead of padding-bottom (#64639)

Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: stokesman <presstoke@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: carolinan <poena@git.wordpress.org>
Co-authored-by: PC888 <kracked888@git.wordpress.org>

* Featured Image Block: Reduce CSS specificity (#64463)

Co-authored-by: dsas <dsas@git.wordpress.org>
Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>

* Inserter: use lighter grammar parse to check allowed status (#64902)

Co-authored-by: ellatrix <ellatrix@git.wordpress.org>
Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: jsnajdr <jsnajdr@git.wordpress.org>
Co-authored-by: tyxla <tyxla@git.wordpress.org>

* Prepare JSON schemas for Draft 7 update (#63582)

Co-authored-by: ajlende <ajlende@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: scruffian <scruffian@git.wordpress.org>

* Fix missing ref support for textAlign and textColumns in theme.json schema (#63625)

* Add missing ref support for textAlign and textColumns

* Update the theme.json reference docs

Co-authored-by: ajlende <ajlende@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: jeryj <jeryj@git.wordpress.org>

* Don't allow duplicating template parts in non-block-based themes (#64379)

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: MadtownLems <madtownlems@git.wordpress.org>

* Fix bumped specificity for layout styles in non-iframed editor (#64076)

* Fix too specific layout styles in non-iframed editor

* Ensure first/last child rules take precedence

* Adjust selectors so that `> :first-child`/`> :last-child` still has 0,2,0 specificity to override theme.json spacing

* Update tests

* Update client side layout selectors to match theme json

* Add backport changelog

----

Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>

* Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in `:where` selectors (#64458)

* Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors

* Add extra test for :where with a pseudo selector

----
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: andreiglingeanu <andreiglingeanu@git.wordpress.org>

* Revert "Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in `:where` selectors (#64458)"

This reverts commit 53a370e.

* Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in `:where` selectors (#64458)

* Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors

* Add extra test for :where with a pseudo selector

----
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: andreiglingeanu <andreiglingeanu@git.wordpress.org>

* Post Editor: fix click space after post content to append (#64992)

* Fix minimally

* Revise comment

* Stop propagation and don’t prevent default

* Insert default block if no blocks are present

* re-build package lock to match format

* Revert "Inserter: use lighter grammar parse to check allowed status (#64902)"

This reverts commit 9b9bbe8.

---------

Co-authored-by: Mitchell Austin <mr.fye@oneandthesame.net>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: carolinan <poena@git.wordpress.org>
Co-authored-by: Aki Hamano <54422211+t-hamano@users.noreply.github.com>
Co-authored-by: stokesman <presstoke@git.wordpress.org>
Co-authored-by: talldan <talldanwp@git.wordpress.org>
Co-authored-by: Rishit30G <rishit30g@git.wordpress.org>
Co-authored-by: dhananjaykuber <dhananjaykuber@git.wordpress.org>
Co-authored-by: Aaron Robertshaw <60436221+aaronrobertshaw@users.noreply.github.com>
Co-authored-by: aaronrobertshaw <aaronrobertshaw@git.wordpress.org>
Co-authored-by: andrewserong <andrewserong@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: dballari <dballari@git.wordpress.org>
Co-authored-by: wongjn <wongjn@git.wordpress.org>
Co-authored-by: George Mamadashvili <georgemamadashvili@gmail.com>
Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: youknowriad <youknowriad@git.wordpress.org>
Co-authored-by: Daniel Richards <daniel.richards@automattic.com>
Co-authored-by: PC888 <kracked888@git.wordpress.org>
Co-authored-by: Dean Sas <dean@deansas.org>
Co-authored-by: dsas <dsas@git.wordpress.org>
Co-authored-by: Ella <4710635+ellatrix@users.noreply.github.com>
Co-authored-by: ellatrix <ellatrix@git.wordpress.org>
Co-authored-by: jsnajdr <jsnajdr@git.wordpress.org>
Co-authored-by: tyxla <tyxla@git.wordpress.org>
Co-authored-by: Alex Lende <alex+github.com@lende.xyz>
Co-authored-by: ajlende <ajlende@git.wordpress.org>
Co-authored-by: scruffian <scruffian@git.wordpress.org>
Co-authored-by: jeryj <jeryj@git.wordpress.org>
Co-authored-by: MadtownLems <madtownlems@git.wordpress.org>
pento pushed a commit to WordPress/wordpress-develop that referenced this pull request Sep 4, 2024
Updates the versions from the [WordPress/gutenberg@a74a70e released packages] for the following bugfixes:

* [WordPress/gutenberg#63980 Global Styles: Fix block custom CSS pseudo element selectors]
* [WordPress/gutenberg#64463 Featured Image Block: Reduce CSS specificity]
* [WordPress/gutenberg#64076 Fix bumped specificity for layout styles in non-iframed editor]
* [WordPress/gutenberg#64379 Don't allow duplicating template parts in non-block-based themes]
* [WordPress/gutenberg#64250 Data Views: Don't render action modal when there are no eligible items]
* [WordPress/gutenberg#63724 Fix canvas issues by removing VisualEditor’s height]
* [WordPress/gutenberg#64992 Post Editor: fix click space after post content to append]
* [WordPress/gutenberg#63939 Post Editor: Prevent popover from being hidden by metabox]
* [WordPress/gutenberg#64639 Post editor: apply space below content using a pseudo-element instead of padding-bottom]
* [WordPress/gutenberg#64015 Avoid errors for post types without a 'menu_icon']
* [WordPress/gutenberg#64458 Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors]

Props vcanales.
Fixes #61982.
See #61704, #61769, #61829.

git-svn-id: https://develop.svn.wordpress.org/trunk@58988 602fd350-edb4-49c9-b593-d223f7449a82
markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Sep 4, 2024
Updates the versions from the [WordPress/gutenberg@a74a70e released packages] for the following bugfixes:

* [WordPress/gutenberg#63980 Global Styles: Fix block custom CSS pseudo element selectors]
* [WordPress/gutenberg#64463 Featured Image Block: Reduce CSS specificity]
* [WordPress/gutenberg#64076 Fix bumped specificity for layout styles in non-iframed editor]
* [WordPress/gutenberg#64379 Don't allow duplicating template parts in non-block-based themes]
* [WordPress/gutenberg#64250 Data Views: Don't render action modal when there are no eligible items]
* [WordPress/gutenberg#63724 Fix canvas issues by removing VisualEditor’s height]
* [WordPress/gutenberg#64992 Post Editor: fix click space after post content to append]
* [WordPress/gutenberg#63939 Post Editor: Prevent popover from being hidden by metabox]
* [WordPress/gutenberg#64639 Post editor: apply space below content using a pseudo-element instead of padding-bottom]
* [WordPress/gutenberg#64015 Avoid errors for post types without a 'menu_icon']
* [WordPress/gutenberg#64458 Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors]

Props vcanales.
Fixes #61982.
See #61704, #61769, #61829.
Built from https://develop.svn.wordpress.org/trunk@58988


git-svn-id: http://core.svn.wordpress.org/trunk@58384 1a063a9b-81f0-0310-95a4-ce76da25c4cd
github-actions bot pushed a commit to gilzow/wordpress-performance that referenced this pull request Sep 4, 2024
Updates the versions from the [WordPress/gutenberg@a74a70e released packages] for the following bugfixes:

* [WordPress/gutenberg#63980 Global Styles: Fix block custom CSS pseudo element selectors]
* [WordPress/gutenberg#64463 Featured Image Block: Reduce CSS specificity]
* [WordPress/gutenberg#64076 Fix bumped specificity for layout styles in non-iframed editor]
* [WordPress/gutenberg#64379 Don't allow duplicating template parts in non-block-based themes]
* [WordPress/gutenberg#64250 Data Views: Don't render action modal when there are no eligible items]
* [WordPress/gutenberg#63724 Fix canvas issues by removing VisualEditor’s height]
* [WordPress/gutenberg#64992 Post Editor: fix click space after post content to append]
* [WordPress/gutenberg#63939 Post Editor: Prevent popover from being hidden by metabox]
* [WordPress/gutenberg#64639 Post editor: apply space below content using a pseudo-element instead of padding-bottom]
* [WordPress/gutenberg#64015 Avoid errors for post types without a 'menu_icon']
* [WordPress/gutenberg#64458 Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors]

Props vcanales.
Fixes #61982.
See #61704, #61769, #61829.
Built from https://develop.svn.wordpress.org/trunk@58988


git-svn-id: https://core.svn.wordpress.org/trunk@58384 1a063a9b-81f0-0310-95a4-ce76da25c4cd
pento pushed a commit to WordPress/wordpress-develop that referenced this pull request Sep 4, 2024
Updates the versions from the [WordPress/gutenberg@a74a70e released packages] for the following bugfixes:

- [WordPress/gutenberg#63980 Global Styles: Fix block custom CSS pseudo element selectors]
- [WordPress/gutenberg#64463 Featured Image Block: Reduce CSS specificity]
- [WordPress/gutenberg#64076 Fix bumped specificity for layout styles in non-iframed editor]
- [WordPress/gutenberg#64379 Don't allow duplicating template parts in non-block-based themes]
- [WordPress/gutenberg#64250 Data Views: Don't render action modal when there are no eligible items]
- [WordPress/gutenberg#63724 Fix canvas issues by removing VisualEditor’s height]
- [WordPress/gutenberg#64992 Post Editor: fix click space after post content to append]
- [WordPress/gutenberg#63939 Post Editor: Prevent popover from being hidden by metabox]
- [WordPress/gutenberg#64639 Post editor: apply space below content using a pseudo-element instead of padding-bottom]
- [WordPress/gutenberg#64015 Avoid errors for post types without a 'menu_icon']
- [WordPress/gutenberg#64458 Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors]

Reviewed by jorbin, hellofromTonya.
Merges [58988] to the 6.6 branch.

Props vcanales.
Fixes #61982.
See #61704, #61769, #61829.


git-svn-id: https://develop.svn.wordpress.org/branches/6.6@58989 602fd350-edb4-49c9-b593-d223f7449a82
markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Sep 4, 2024
Updates the versions from the [WordPress/gutenberg@a74a70e released packages] for the following bugfixes:

- [WordPress/gutenberg#63980 Global Styles: Fix block custom CSS pseudo element selectors]
- [WordPress/gutenberg#64463 Featured Image Block: Reduce CSS specificity]
- [WordPress/gutenberg#64076 Fix bumped specificity for layout styles in non-iframed editor]
- [WordPress/gutenberg#64379 Don't allow duplicating template parts in non-block-based themes]
- [WordPress/gutenberg#64250 Data Views: Don't render action modal when there are no eligible items]
- [WordPress/gutenberg#63724 Fix canvas issues by removing VisualEditor’s height]
- [WordPress/gutenberg#64992 Post Editor: fix click space after post content to append]
- [WordPress/gutenberg#63939 Post Editor: Prevent popover from being hidden by metabox]
- [WordPress/gutenberg#64639 Post editor: apply space below content using a pseudo-element instead of padding-bottom]
- [WordPress/gutenberg#64015 Avoid errors for post types without a 'menu_icon']
- [WordPress/gutenberg#64458 Update postcss-prefixwrap dependency to 1.51.0 to fix prefixing in :where selectors]

Reviewed by jorbin, hellofromTonya.
Merges [58988] to the 6.6 branch.

Props vcanales.
Fixes #61982.
See #61704, #61769, #61829.

Built from https://develop.svn.wordpress.org/branches/6.6@58989


git-svn-id: http://core.svn.wordpress.org/branches/6.6@58385 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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Labels
Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release Global Styles Anything related to the broader Global Styles efforts, including Styles Engine and theme.json [Type] Bug An existing feature does not function as intended
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Status: ✅ Done 6.6.2
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Successfully merging this pull request may close these issues.

Pseudo-element selectors in styles.**.css property no longer work in 6.6 compared to 6.5
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