fix: auto-cleanup by bot (mdn#42717)

* chore: auto-fix Markdownlint, Prettier, and front-matter issues

* Fix more

---------

Co-authored-by: Joshua Chen <sidachen2003@gmail.com>

Author: mdn-bot

files/en-us/mozilla/firefox/releases/128/index.md

@@ -17,7 +17,7 @@ This article provides information about the changes in Firefox 128 that affect d
 ### CSS
 
 - [Relative color syntax](/en-US/docs/Web/CSS/Guides/Colors/Using_relative_colors) is now enabled by default. Relative color syntax allows you to create a color value relative to an origin color, and can allow you to change a color in a different [color space](/en-US/docs/Glossary/Color_space) using [color functions](/en-US/docs/Web/CSS/Guides/Colors#functions) ([Firefox bug 1900251](https://bugzil.la/1900251)).
-- The [`content`](/en-US/docs/Web/CSS/Reference/Properties/content) property now supports [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter) for content that includes an image. The alternative text is then exposed to the browsers accessibility tree. (See [Firefox bug 1281158](https://bugzil.la/1281158) and [Firefox bug 1896047](https://bugzil.la/1896047)).
+- The [`content`](/en-US/docs/Web/CSS/Reference/Properties/content) property now supports [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter_attr) for content that includes an image. The alternative text is then exposed to the browsers accessibility tree. (See [Firefox bug 1281158](https://bugzil.la/1281158) and [Firefox bug 1896047](https://bugzil.la/1896047)).
 - The [`syntax`](/en-US/docs/Web/CSS/Reference/At-rules/@property/syntax) descriptor of the {{cssxref("@property")}} at-rule now supports the `<string>` syntax component name. (See [Firefox bug 1846635](https://bugzil.la/1846635)).
 
 #### Removals

files/en-us/web/css/guides/backgrounds_and_borders/using_multiple_backgrounds/index.md

@@ -55,7 +55,6 @@ For example:
 }
 ```
 
-
 This is equivalent to:
 
 ```css

files/en-us/web/css/reference/properties/baseline-source/index.md

@@ -86,7 +86,7 @@ body {
 }
 
 .box {
-  border: 2px solid #888 888;
+  border: 2px solid #888888;
   width: 50px;
 }
 

files/en-us/web/css/reference/selectors/_doublecolon_scroll-button/index.md

@@ -157,7 +157,7 @@ ul::scroll-button(right) {
 }
 ```
 
-We don't need to set [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter) for the icons on the `content` as the browser takes care of providing appropriate {{glossary("accessible name", "accessible names")}} automatically.
+We don't need to set [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter_attr) for the icons on the `content` as the browser takes care of providing appropriate {{glossary("accessible name", "accessible names")}} automatically.
 
 #### Result
 

files/en-us/web/html/reference/elements/input/url/index.md

@@ -298,7 +298,7 @@ The [`title`](/en-US/docs/Web/HTML/Reference/Global_attributes/title) attribute
 
 #### CSS
 
-The CSS gives visual clues to show the user if the content is {{cssxref(":valid")}} or {{cssxref(":invalid")}} by adding an appropriate {{cssxref("content")}} property and includes [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter) for users with assistive technologies.
+The CSS gives visual clues to show the user if the content is {{cssxref(":valid")}} or {{cssxref(":invalid")}} by adding an appropriate {{cssxref("content")}} property and includes [alternative text](/en-US/docs/Web/CSS/Reference/Properties/content#alternative_text_string_counter_attr) for users with assistive technologies.
 
 ```css live-sample___url-validation
 input:focus:invalid {

files/en-us/web/javascript/reference/global_objects/undefined/index.md

@@ -116,7 +116,7 @@ if ("x" in window) {
 }
 ```
 
-However, none of the techniques above work if the variable is declared with `let`, `const`, or other lexical declarations. Using `typeof` before the line of declaration still produces a `ReferenceError`, due to the {{jsxref("Statements/let#temporal_dead_zone_tdz", "temporal dead zone (TDZ)")}}.
+However, none of the techniques above work if the variable is declared with `let`, `const`, or other lexical declarations. Using `typeof` before the line of declaration still produces a `ReferenceError`, due to the [temporal dead zone (TDZ)](/en-US/docs/Web/JavaScript/Reference/Statements/let#temporal_dead_zone_tdz).
 
 ```js example-bad
 if (typeof z === "undefined") {