move page: css at rule functions (mdn#38424)

* move page: css at rule functions

* spacing issue

Author: estelle

files/en-us/_redirects.txt

@@ -11827,6 +11827,7 @@
 /en-US/docs/Web/CSS/All_About_The_Containing_Block	/en-US/docs/Web/CSS/CSS_display/Containing_block
 /en-US/docs/Web/CSS/Alternative_style_sheets	/en-US/docs/Web/HTML/Attributes/rel/alternate_stylesheet
 /en-US/docs/Web/CSS/At-rule	/en-US/docs/Web/CSS/CSS_syntax/At-rule
+/en-US/docs/Web/CSS/At-rule-functions	/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions
 /en-US/docs/Web/CSS/Aural	/en-US/docs/Web/CSS/@media/aural
 /en-US/docs/Web/CSS/Block_formatting_context	/en-US/docs/Web/CSS/CSS_display/Block_formatting_context
 /en-US/docs/Web/CSS/CSS3_Columns	/en-US/docs/Web/CSS/CSS_multicol_layout/Using_multicol_layouts

files/en-us/web/css/@container/index.md

@@ -322,3 +322,4 @@ The global `revert` and `revert-layer` are invalid as values in a `<style-featur
 - {{Cssxref("contain")}}
 - {{Cssxref("content-visibility")}}
 - [CSS containment module](/en-US/docs/Web/CSS/CSS_containment)
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)

files/en-us/web/css/@import/index.md

@@ -161,3 +161,4 @@ This is an example of creating two separate unnamed cascade layers and importing
 - {{CSSxRef("@media")}}
 - {{CSSxRef("@supports")}}
 - [CSS cascading and inheritance](/en-US/docs/Web/CSS/CSS_cascade) module
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)

files/en-us/web/css/@namespace/index.md

@@ -102,3 +102,4 @@ svg|a {
 ## See also
 
 - [Namespaces crash course](/en-US/docs/Web/SVG/Namespaces_Crash_Course)
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)

files/en-us/web/css/@supports/index.md

@@ -318,4 +318,6 @@ The following example applies the CSS style if the browser supports the `woff2`
 ## See also
 
 - [Using feature queries](/en-US/docs/Web/CSS/CSS_conditional_rules/Using_feature_queries)
-- The CSSOM class {{DOMxRef("CSSSupportsRule")}}, and the {{DOMxref("CSS.supports_static", "CSS.supports()")}} method that allows the same check to be performed via JavaScript.
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)
+- {{DOMxRef("CSSSupportsRule")}}
+- {{DOMxref("CSS.supports_static", "CSS.supports()")}} method

files/en-us/web/css/@view-transition/index.md

@@ -102,4 +102,4 @@ See this [transitions multi-page app](https://mdn.github.io/dom-examples/view-tr
 - {{cssxref("::view-transition-image-pair", "::view-transition-image-pair()")}}
 - [View Transition API](/en-US/docs/Web/API/View_Transition_API)
 - [CSS at-rules](/en-US/docs/Web/CSS/CSS_syntax/At-rule)
-- [CSS at-rule functions](/en-US/docs/Web/CSS/At-rule-functions)
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)

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

@@ -64,5 +64,5 @@ The `@namespace` rule is used for declaring a default namespace and for binding
 - [`<a>`](/en-US/docs/Web/SVG/Element/a#example) SVG element
 - [CSS `<url>` type](/en-US/docs/Web/CSS/url_value)
 - [CSS at-rules](/en-US/docs/Web/CSS/CSS_syntax/At-rule)
-- [CSS at-rule functions](/en-US/docs/Web/CSS/At-rule-functions)
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)
 - [CSS selectors](/en-US/docs/Web/CSS/CSS_selectors)

files/en-us/web/css/css_syntax/at-rule/index.md

@@ -102,7 +102,7 @@ Block at-rules end in a `{}`-block that contain nested rules, other at-rules, or
 
 ## See also
 
-- [CSS at-rule functions](/en-US/docs/Web/CSS/At-rule-functions)
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)
 - [Nesting CSS at-rules](/en-US/docs/Web/CSS/CSS_nesting/Nesting_at-rules)
 - [CSS statements](/en-US/docs/Web/CSS/CSS_syntax/Syntax#css_statements)
 - [CSSRule](/en-US/docs/Web/API/CSSRule) interface

…en-us/web/css/at-rule-functions/index.md …ss/css_syntax/at-rule_functions/index.mdfiles/en-us/web/css/at-rule-functions/index.md renamed to files/en-us/web/css/css_syntax/at-rule_functions/index.md files/en-us/web/css/at-rule-functions/index.md renamed to files/en-us/web/css/css_syntax/at-rule_functions/index.md

@@ -1,6 +1,6 @@
 ---
 title: CSS at-rule functions
-slug: Web/CSS/At-rule-functions
+slug: Web/CSS/CSS_syntax/At-rule_functions
 page-type: guide
 ---
 
@@ -54,3 +54,7 @@ The {{CSSxRef("@container")}} at-rule is used to specify styles for a containmen
 
 - {{CSSxRef("@container", "@container style()")}}
   - : Defines the containment context style.
+
+## See also
+
+- [CSS syntax](/en-US/docs/Web/CSS/CSS_syntax) module

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

@@ -102,5 +102,6 @@ This module doesn't define any properties, [data types](/en-US/docs/Web/CSS/CSS_
 
 ## See also
 
+- [CSS at-rule functions](/en-US/docs/Web/CSS/CSS_syntax/At-rule_functions)
 - [CSS selectors](/en-US/docs/Web/CSS/CSS_selectors) module
 - [CSS values and units](/en-US/docs/Web/CSS/CSS_Values_and_Units) module