update dependencies

Author: romainmenke

package-lock.json

@@ -1,5 +1,9 @@
 # Changes to CSS Syntax Patches For CSSTree
 
+### Unreleased (patch)
+
+- Update `@webref/css` to [`v8.7.1`](https://github.com/w3c/webref/releases/tag/%40webref%2Fcss%408.7.1)
+
 ### 1.1.7
 
 _July 22, 2026_

packages/css-syntax-patches-for-csstree/CHANGELOG.md

@@ -41,7 +41,7 @@
 		}
 	},
 	"devDependencies": {
-		"@webref/css": "^8.7.0",
+		"@webref/css": "^8.7.1",
 		"css-tree": "^3.2.1",
 		"postcss": "^8.5"
 	},

packages/css-syntax-patches-for-csstree/dist/index.json

@@ -110,6 +110,39 @@
 			"failing": []
 		}
 	},
+	"animation-delay": {
+		"type": "modified",
+		"comment": "",
+		"syntax-b": "<time>#",
+		"syntax-a": "[ <'animation-delay-start'> <'animation-delay-end'>? ]#",
+		"syntax-m": "[ <'animation-delay-start'> <'animation-delay-end'>? ]#",
+		"tests": {
+			"passing": [],
+			"failing": []
+		}
+	},
+	"animation-delay-end": {
+		"type": "added",
+		"comment": "",
+		"syntax-b": "",
+		"syntax-a": "<time [0s,∞]>#",
+		"syntax-m": "<time [0s,∞]>#",
+		"tests": {
+			"passing": [],
+			"failing": []
+		}
+	},
+	"animation-delay-start": {
+		"type": "added",
+		"comment": "",
+		"syntax-b": "",
+		"syntax-a": "<time>#",
+		"syntax-m": "<time>#",
+		"tests": {
+			"passing": [],
+			"failing": []
+		}
+	},
 	"animation-range-center": {
 		"type": "added",
 		"comment": "",

packages/css-syntax-patches-for-csstree/package.json

@@ -35,6 +35,24 @@
 		"syntax-a": "none | all | <anchor-name>#",
 		"comment": ""
 	},
+	"animation-delay": {
+		"type": "modified",
+		"syntax-b": "<time>#",
+		"syntax-a": "[ <'animation-delay-start'> <'animation-delay-end'>? ]#",
+		"comment": ""
+	},
+	"animation-delay-end": {
+		"type": "added",
+		"syntax-b": "",
+		"syntax-a": "<time [0s,∞]>#",
+		"comment": ""
+	},
+	"animation-delay-start": {
+		"type": "added",
+		"syntax-b": "",
+		"syntax-a": "<time>#",
+		"comment": ""
+	},
 	"animation-range-center": {
 		"type": "added",
 		"syntax-b": "",

packages/css-syntax-patches-for-csstree/patches/webref-over-csstree-properties.json

@@ -39,6 +39,12 @@
 		"syntax": "<single-animation-composition>#"
 	},
 	"animation-delay": {
+		"syntax": "[ <'animation-delay-start'> <'animation-delay-end'>? ]#"
+	},
+	"animation-delay-end": {
+		"syntax": "<time [0s,∞]>#"
+	},
+	"animation-delay-start": {
 		"syntax": "<time>#"
 	},
 	"animation-direction": {