40483 heading selectors (mdn#40784)

* added the :heading and :heading pages

* finshed the :heading & :heading() pages

* added note to :heading() and added both to pseudo-classes page

* Update files/en-us/web/css/_colon_heading_function/index.md

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* made explanation match code example

* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading/index.md

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* fixed code blocks

* Update files/en-us/web/css/_colon_heading_function/index.md

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* updated the Note & parameters

* fixed the syntax example

* added a note about matching attributes

* moved the note to usage notes

* Update files/en-us/web/css/_colon_heading/index.md

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* Update files/en-us/web/css/_colon_heading_function/index.md

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* Update files/en-us/web/css/_colon_heading_function/index.md

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* Update files/en-us/web/css/_colon_heading_function/index.md

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* fixed the code block not ending and the example of aria roles

* Update files/en-us/web/css/_colon_heading/index.md

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Author: 6 people

files/en-us/web/css/_colon_heading/index.md

@@ -7,7 +7,8 @@ sidebar: cssref
 ---
 
 The **`:heading`** [CSS](/en-US/docs/Web/CSS) [pseudo-class](/en-US/docs/Web/CSS/Pseudo-classes) matches all [heading elements](/en-US/docs/Web/HTML/Reference/Elements/Heading_Elements) in a document. This allows you to style all headings at once, rather than matching and styling them individually.
-This pseudo-class matches only elements that are semantically recognized as headings (`<h1>` through `<h6>`). Elements with [`role="heading"`](/en-US/docs/Web/Accessibility/ARIA/Reference/Roles/heading_role) are not matched; you can select those by using the functional form, {{CSSXRef(":heading_function", ":heading()")}}.
+
+This pseudo-class matches only elements that by default are semantically recognized as headings (`<h1>` through `<h6>`). Elements with [`role="heading"`](/en-US/docs/Web/Accessibility/ARIA/Reference/Roles/heading_role) are not matched; you can select those by using the `[role="heading"]` [attribute selector](/en-US/docs/Web/CSS/Attribute_selectors).
 
 > [!NOTE]
 > The `:heading` pseudo-class has the same [specificity](/en-US/docs/Web/CSS/CSS_cascade/Specificity#how_is_specificity_calculated) as a class selector, that is, `0-1-0`. So `:heading` would have a specificity of `0-1-0`, and `section:heading` would have a specificity of `0-1-1`.