Scroll Anchoring L1 (ED 2020-09-18) (#1038)

edit/codemirror-default.js

@@ -105,6 +105,7 @@
   }
 
   Object.assign(CodeMirror.mimeModes['text/css'].propertyKeywords, {
+    'overflow-anchor': true,
     'overscroll-behavior': true,
   });
   Object.assign(CodeMirror.mimeModes['text/css'].colorKeywords, {

vendor-overwrites/csslint/parserlib.js

@@ -508,6 +508,7 @@ self.parserlib = (() => {
     'outline-style':   '<border-style> | auto',
     'outline-width':   '<border-width>',
     'overflow':        '<overflow>{1,2}',
+    'overflow-anchor': 'auto | none',
     'overflow-block':  '<overflow>',
     'overflow-inline': '<overflow>',
     'overflow-style':  1,