chore(css): Add CSS Anchor Positioning group (#922)

Author: skyclouds2001

css/at-rules.json

@@ -455,7 +455,7 @@
       "CSSPositionTryRule"
     ],
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "status": "experimental",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@position-try"

css/definitions.json

@@ -4,6 +4,7 @@
       "Basic Selectors",
       "Combinators",
       "Compositing and Blending",
+      "CSS Anchor Positioning",
       "CSS Angles",
       "CSS Animations",
       "CSS Backgrounds and Borders",

css/functions.json

@@ -20,15 +20,15 @@
   "anchor()": {
     "syntax": "anchor( <anchor-name>? && <anchor-side>, <length-percentage>? )",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "status": "experimental",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor"
   },
   "anchor-size()": {
     "syntax": "anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "status": "experimental",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor-size"

css/properties.json

@@ -1743,7 +1743,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "none",
     "appliesto": "allElementsThatGenerateAPrincipalBox",
@@ -1759,7 +1759,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "none",
     "appliesto": "allElements",
@@ -8403,7 +8403,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "auto",
     "appliesto": "absolutelyPositionedElements",
@@ -8419,7 +8419,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "none",
     "appliesto": "positionedElementsWithADefaultAnchorElement",
@@ -8441,7 +8441,7 @@
       "position-try-order"
     ],
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": [
       "position-try-fallbacks",
@@ -8463,7 +8463,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "none",
     "appliesto": "absolutelyPositionedElements",
@@ -8479,7 +8479,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "normal",
     "appliesto": "absolutelyPositionedElements",
@@ -8495,7 +8495,7 @@
     "animationType": "discrete",
     "percentages": "no",
     "groups": [
-      "CSS Positioning"
+      "CSS Anchor Positioning"
     ],
     "initial": "anchors-visible",
     "appliesto": "absolutelyPositionedElements",