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Link elements: Add a :where selector to the :not to lower specificity #42669
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The technique was used in the past and it worked 🚢
It does feel like all core CSS will end up being in :where
...
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LGTM! 👍
There are some failing tests because we'll need to update the CSS strings in the test files, but other than that it looks good. I'm pre-approving this PR so it can get merged once the tests get fixed 🎉
TIL. Thanks @scruffian |
This commit backports the original PRs from Gutenberg repository: * [WordPress/gutenberg#40260 #40260 Add support for button elements to theme.json] * [WordPress/gutenberg#40889 #40889 Theme Json: Don't output double selectors for elements inside blocks] * [WordPress/gutenberg#41140 #41140 Global Styles: Add support for caption elements] * [WordPress/gutenberg#41160 #41160 Global Styles: Load block CSS conditionally] * [WordPress/gutenberg#41240 #41240 Global Styles: Button Element: update button element selector] * [WordPress/gutenberg#41335 #41335 Duotone: Fix CSS Selectors rendered by theme.json duotone/filter settings for blocks on public pages] * [WordPress/gutenberg#41446 #41446 Block styles: Account for style block nodes that have no name] * [WordPress/gutenberg#41696 #41696 Global Styles: Allow references to values in other locations in the tree] * [WordPress/gutenberg#41753 #41753 Elements: Add an API make it easier to get class names] * [WordPress/gutenberg#41786 #41786 Support pseudo selectors on elements in theme json] * [WordPress/gutenberg#41822 #41822 Elements: Button - Fix element selectors] * [WordPress/gutenberg#41981 #41981 Global Styles: Add support for heading elements] * [WordPress/gutenberg#42072 #42072 Fix link element hover bleeding into button element default styles] * [WordPress/gutenberg#42096 #42096 Add visited to link element allowed pseudo selector list] * [WordPress/gutenberg#42669 #42669 Link elements: Add a :where selector to the :not to lower specificity] * [WordPress/gutenberg#42776 #42776 Theme JSON: Add a static $blocks_metadata data definition to the Gutenberg instance of WP_Theme_JSON] * [WordPress/gutenberg#43088 #43088 Pseudo elements supports on button elements] * [WordPress/gutenberg#43167 #43167 Theme_JSON: Use existing append_to_selector for pseudo elements] * [WordPress/gutenberg#43988 #43988 Styles API: Fixed selectors for nested elements] Props onemaggie, bernhard-reiter, cbravobernal, mmaattiiaass, scruffian, andraganescu, dpcalhoun, get_dave, Mamaduka, SergeyBiryukov. See #56467. git-svn-id: https://develop.svn.wordpress.org/trunk@54118 602fd350-edb4-49c9-b593-d223f7449a82
This commit backports the original PRs from Gutenberg repository: * [WordPress/gutenberg#40260 #40260 Add support for button elements to theme.json] * [WordPress/gutenberg#40889 #40889 Theme Json: Don't output double selectors for elements inside blocks] * [WordPress/gutenberg#41140 #41140 Global Styles: Add support for caption elements] * [WordPress/gutenberg#41160 #41160 Global Styles: Load block CSS conditionally] * [WordPress/gutenberg#41240 #41240 Global Styles: Button Element: update button element selector] * [WordPress/gutenberg#41335 #41335 Duotone: Fix CSS Selectors rendered by theme.json duotone/filter settings for blocks on public pages] * [WordPress/gutenberg#41446 #41446 Block styles: Account for style block nodes that have no name] * [WordPress/gutenberg#41696 #41696 Global Styles: Allow references to values in other locations in the tree] * [WordPress/gutenberg#41753 #41753 Elements: Add an API make it easier to get class names] * [WordPress/gutenberg#41786 #41786 Support pseudo selectors on elements in theme json] * [WordPress/gutenberg#41822 #41822 Elements: Button - Fix element selectors] * [WordPress/gutenberg#41981 #41981 Global Styles: Add support for heading elements] * [WordPress/gutenberg#42072 #42072 Fix link element hover bleeding into button element default styles] * [WordPress/gutenberg#42096 #42096 Add visited to link element allowed pseudo selector list] * [WordPress/gutenberg#42669 #42669 Link elements: Add a :where selector to the :not to lower specificity] * [WordPress/gutenberg#42776 #42776 Theme JSON: Add a static $blocks_metadata data definition to the Gutenberg instance of WP_Theme_JSON] * [WordPress/gutenberg#43088 #43088 Pseudo elements supports on button elements] * [WordPress/gutenberg#43167 #43167 Theme_JSON: Use existing append_to_selector for pseudo elements] * [WordPress/gutenberg#43988 #43988 Styles API: Fixed selectors for nested elements] Props onemaggie, bernhard-reiter, cbravobernal, mmaattiiaass, scruffian, andraganescu, dpcalhoun, get_dave, Mamaduka, SergeyBiryukov. See #56467. Built from https://develop.svn.wordpress.org/trunk@54118 git-svn-id: http://core.svn.wordpress.org/trunk@53677 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit backports the original PRs from Gutenberg repository: * [WordPress/gutenberg#40260 #40260 Add support for button elements to theme.json] * [WordPress/gutenberg#40889 #40889 Theme Json: Don't output double selectors for elements inside blocks] * [WordPress/gutenberg#41140 #41140 Global Styles: Add support for caption elements] * [WordPress/gutenberg#41160 #41160 Global Styles: Load block CSS conditionally] * [WordPress/gutenberg#41240 #41240 Global Styles: Button Element: update button element selector] * [WordPress/gutenberg#41335 #41335 Duotone: Fix CSS Selectors rendered by theme.json duotone/filter settings for blocks on public pages] * [WordPress/gutenberg#41446 #41446 Block styles: Account for style block nodes that have no name] * [WordPress/gutenberg#41696 #41696 Global Styles: Allow references to values in other locations in the tree] * [WordPress/gutenberg#41753 #41753 Elements: Add an API make it easier to get class names] * [WordPress/gutenberg#41786 #41786 Support pseudo selectors on elements in theme json] * [WordPress/gutenberg#41822 #41822 Elements: Button - Fix element selectors] * [WordPress/gutenberg#41981 #41981 Global Styles: Add support for heading elements] * [WordPress/gutenberg#42072 #42072 Fix link element hover bleeding into button element default styles] * [WordPress/gutenberg#42096 #42096 Add visited to link element allowed pseudo selector list] * [WordPress/gutenberg#42669 #42669 Link elements: Add a :where selector to the :not to lower specificity] * [WordPress/gutenberg#42776 #42776 Theme JSON: Add a static $blocks_metadata data definition to the Gutenberg instance of WP_Theme_JSON] * [WordPress/gutenberg#43088 #43088 Pseudo elements supports on button elements] * [WordPress/gutenberg#43167 #43167 Theme_JSON: Use existing append_to_selector for pseudo elements] * [WordPress/gutenberg#43988 #43988 Styles API: Fixed selectors for nested elements] Props onemaggie, bernhard-reiter, cbravobernal, mmaattiiaass, scruffian, andraganescu, dpcalhoun, get_dave, Mamaduka, SergeyBiryukov. See #56467. Built from https://develop.svn.wordpress.org/trunk@54118 git-svn-id: https://core.svn.wordpress.org/trunk@53677 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit backports the original PRs from Gutenberg repository: * [WordPress/gutenberg#40260 #40260 Add support for button elements to theme.json] * [WordPress/gutenberg#40889 #40889 Theme Json: Don't output double selectors for elements inside blocks] * [WordPress/gutenberg#41140 #41140 Global Styles: Add support for caption elements] * [WordPress/gutenberg#41160 #41160 Global Styles: Load block CSS conditionally] * [WordPress/gutenberg#41240 #41240 Global Styles: Button Element: update button element selector] * [WordPress/gutenberg#41335 #41335 Duotone: Fix CSS Selectors rendered by theme.json duotone/filter settings for blocks on public pages] * [WordPress/gutenberg#41446 #41446 Block styles: Account for style block nodes that have no name] * [WordPress/gutenberg#41696 #41696 Global Styles: Allow references to values in other locations in the tree] * [WordPress/gutenberg#41753 #41753 Elements: Add an API make it easier to get class names] * [WordPress/gutenberg#41786 #41786 Support pseudo selectors on elements in theme json] * [WordPress/gutenberg#41822 #41822 Elements: Button - Fix element selectors] * [WordPress/gutenberg#41981 #41981 Global Styles: Add support for heading elements] * [WordPress/gutenberg#42072 #42072 Fix link element hover bleeding into button element default styles] * [WordPress/gutenberg#42096 #42096 Add visited to link element allowed pseudo selector list] * [WordPress/gutenberg#42669 #42669 Link elements: Add a :where selector to the :not to lower specificity] * [WordPress/gutenberg#42776 #42776 Theme JSON: Add a static $blocks_metadata data definition to the Gutenberg instance of WP_Theme_JSON] * [WordPress/gutenberg#43088 #43088 Pseudo elements supports on button elements] * [WordPress/gutenberg#43167 #43167 Theme_JSON: Use existing append_to_selector for pseudo elements] * [WordPress/gutenberg#43988 #43988 Styles API: Fixed selectors for nested elements] Props onemaggie, bernhard-reiter, cbravobernal, mmaattiiaass, scruffian, andraganescu, dpcalhoun, get_dave, Mamaduka, SergeyBiryukov. See #56467. Built from https://develop.svn.wordpress.org/trunk@54118
This commit backports the original PRs from Gutenberg repository: * [WordPress/gutenberg#40260 #40260 Add support for button elements to theme.json] * [WordPress/gutenberg#40889 #40889 Theme Json: Don't output double selectors for elements inside blocks] * [WordPress/gutenberg#41140 #41140 Global Styles: Add support for caption elements] * [WordPress/gutenberg#41160 #41160 Global Styles: Load block CSS conditionally] * [WordPress/gutenberg#41240 #41240 Global Styles: Button Element: update button element selector] * [WordPress/gutenberg#41335 #41335 Duotone: Fix CSS Selectors rendered by theme.json duotone/filter settings for blocks on public pages] * [WordPress/gutenberg#41446 #41446 Block styles: Account for style block nodes that have no name] * [WordPress/gutenberg#41696 #41696 Global Styles: Allow references to values in other locations in the tree] * [WordPress/gutenberg#41753 #41753 Elements: Add an API make it easier to get class names] * [WordPress/gutenberg#41786 #41786 Support pseudo selectors on elements in theme json] * [WordPress/gutenberg#41822 #41822 Elements: Button - Fix element selectors] * [WordPress/gutenberg#41981 #41981 Global Styles: Add support for heading elements] * [WordPress/gutenberg#42072 #42072 Fix link element hover bleeding into button element default styles] * [WordPress/gutenberg#42096 #42096 Add visited to link element allowed pseudo selector list] * [WordPress/gutenberg#42669 #42669 Link elements: Add a :where selector to the :not to lower specificity] * [WordPress/gutenberg#42776 #42776 Theme JSON: Add a static $blocks_metadata data definition to the Gutenberg instance of WP_Theme_JSON] * [WordPress/gutenberg#43088 #43088 Pseudo elements supports on button elements] * [WordPress/gutenberg#43167 #43167 Theme_JSON: Use existing append_to_selector for pseudo elements] * [WordPress/gutenberg#43988 #43988 Styles API: Fixed selectors for nested elements] Props onemaggie, bernhard-reiter, cbravobernal, mmaattiiaass, scruffian, andraganescu, dpcalhoun, get_dave, Mamaduka, SergeyBiryukov. See #56467. git-svn-id: https://develop.svn.wordpress.org/trunk@54118 602fd350-edb4-49c9-b593-d223f7449a82
What?
This reduces the specificity of the link selector.
Why?
Having a highly specific link selector makes it more complicated for themes to override these rules - see #42616.
How?
:where
reduces the specificity of the:not
selector to zero, so this now has the same specificity as before.Testing Instructions
Screenshots or screencast
cc @WordPress/block-themers