34698 ship starting style ff release (mdn#34838)

* added release note for @starting-style and updated experimental note * Update files/en-us/mozilla/firefox/releases/129/index.md Co-authored-by: Brian Thomas Smith <[email protected]> * Update files/en-us/mozilla/firefox/experimental_features/index.md Co-authored-by: Brian Thomas Smith <[email protected]> --------- Co-authored-by: Brian Thomas Smith <[email protected]>
dwgrth · Jul 16, 2024 · 9618072 · 9618072
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diff --git a/files/en-us/mozilla/firefox/experimental_features/index.md b/files/en-us/mozilla/firefox/experimental_features/index.md
@@ -996,7 +996,7 @@ For more details, see [Firefox bug 1823463](https://bugzil.la/1823463) for the `
 
 ### `@starting-style` at-rule
 
-The CSS [`@starting-style`](/en-US/docs/Web/CSS/@starting-style) at-rule allows you to set the starting styles of an element for a CSS transition, when the element has no default initial style. This is particularly useful for elements that are hidden from view on the first paint such as [`popover`](/en-US/docs/Web/HTML/Global_attributes/popover) or ['dialog'](/en-US/docs/Web/HTML/Element/dialog). For more details, see [Firefox bug 1834876](https://bugzil.la/1834876).
+The CSS [`@starting-style`](/en-US/docs/Web/CSS/@starting-style) at-rule allows you to set the starting styles of an element for a CSS transition, when the element has no default initial style. This is particularly useful for elements that are hidden from view on the first paint such as [`popover`](/en-US/docs/Web/HTML/Global_attributes/popover) or ['dialog'](/en-US/docs/Web/HTML/Element/dialog). Does not yet support animating from `display: none`. For more details, see [Firefox bug 1834876](https://bugzil.la/1834876) and [Firefox bug 1834877](https://bugzil.la/1834877).
 
 <table>
   <thead>

diff --git a/files/en-us/mozilla/firefox/releases/129/index.md b/files/en-us/mozilla/firefox/releases/129/index.md
@@ -18,6 +18,8 @@ This article provides information about the changes in Firefox 129 that affect d
 
 ### CSS
 
+- The [@starting-style](/en-US/docs/Web/CSS/@starting-style) CSS at-rule is supported. This lets you define starting values for properties set on an element that you want to transition from when the element receives its first style update. Currently animating from `display: none;` is not supported ([Firefox bug 1834876](https://bugzil.la/1834876) and [Firefox bug 1834877](https://bugzil.la/1834877)).
+
 #### Removals
 
 ### JavaScript
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     ### `@starting-style` at-rule
-    The CSS [`@starting-style`](/en-US/docs/Web/CSS/@starting-style) at-rule allows you to set the starting styles of an element for a CSS transition, when the element has no default initial style. This is particularly useful for elements that are hidden from view on the first paint such as [`popover`](/en-US/docs/Web/HTML/Global_attributes/popover) or ['dialog'](/en-US/docs/Web/HTML/Element/dialog). For more details, see [Firefox bug 1834876](https://bugzil.la/1834876).
+    The CSS [`@starting-style`](/en-US/docs/Web/CSS/@starting-style) at-rule allows you to set the starting styles of an element for a CSS transition, when the element has no default initial style. This is particularly useful for elements that are hidden from view on the first paint such as [`popover`](/en-US/docs/Web/HTML/Global_attributes/popover) or ['dialog'](/en-US/docs/Web/HTML/Element/dialog). Does not yet support animating from `display: none`. For more details, see [Firefox bug 1834876](https://bugzil.la/1834876) and [Firefox bug 1834877](https://bugzil.la/1834877).
     <table>
       <thead>
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