nesting: @starting-style (#1059)

Author: romainmenke

plugins/postcss-nesting/CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changes to PostCSS Nesting
 
+### Unreleased (patch)
+
+- Fix nesting of `@starting-style` rules
+
 ### 12.0.0
 
 _July 3, 2023_

plugins/postcss-nesting/dist/index.cjs

@@ -1 +1 @@
-export default ['container', 'document', 'media', 'supports', 'layer'];
+export default ['container', 'document', 'media', 'supports', 'layer', 'starting-style'];

plugins/postcss-nesting/dist/index.mjs

@@ -233,3 +233,12 @@ a {
 
 	declaration: 2;
 }
+
+h1 {
+	transition: background-color 1.5s;
+	background-color: green;
+
+	@starting-style {
+		background-color: transparent;
+	}
+}

plugins/postcss-nesting/src/lib/valid-atrules.ts

@@ -214,4 +214,16 @@ a b[a="a&b"] {
 	declaration: 2;
 }
 
-@layer foo
+@layer foo;
+
+h1 {
+	transition: background-color 1.5s;
+	background-color: green;
+}
+
+@starting-style {
+
+h1 {
+		background-color: transparent;
+}
+	}

plugins/postcss-nesting/test/basic.css

@@ -214,4 +214,16 @@ a b[a="a&b"] {
 	declaration: 2;
 }
 
-@layer foo
+@layer foo;
+
+h1 {
+	transition: background-color 1.5s;
+	background-color: green;
+}
+
+@starting-style {
+
+h1 {
+		background-color: transparent;
+}
+	}