microsoft · sandersn · Sep 26, 2019 · Jun 12, 2019 · Sep 26, 2019
diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
@@ -2769,7 +2769,7 @@ interface CSSStyleDeclaration {
     borderBottomRightRadius: string;
     borderBottomStyle: string;
     borderBottomWidth: string;
-    borderCollapse: string | null;
+    borderCollapse: string;
     borderColor: string;
     borderImage: string;
     borderImageOutset: string;
@@ -2794,7 +2794,7 @@ interface CSSStyleDeclaration {
     borderRightColor: string;
     borderRightStyle: string;
     borderRightWidth: string;
-    borderSpacing: string | null;
+    borderSpacing: string;
     borderStyle: string;
     borderTop: string;
     borderTopColor: string;
@@ -2803,15 +2803,15 @@ interface CSSStyleDeclaration {
     borderTopStyle: string;
     borderTopWidth: string;
     borderWidth: string;
-    bottom: string | null;
+    bottom: string;
     boxShadow: string;
     boxSizing: string;
     breakAfter: string | null;
     breakBefore: string | null;
     breakInside: string | null;
-    captionSide: string | null;
+    captionSide: string;
     caretColor: string;
-    clear: string | null;
+    clear: string;
     clip: string;
     clipPath: string;
     clipRule: string;
@@ -2827,16 +2827,16 @@ interface CSSStyleDeclaration {
     columnSpan: string;
     columnWidth: string;
     columns: string;
-    content: string | null;
-    counterIncrement: string | null;
-    counterReset: string | null;
+    content: string;
+    counterIncrement: string;
+    counterReset: string;
     cssFloat: string | null;
     cssText: string;
     cursor: string;
     direction: string;
-    display: string | null;
+    display: string;
     dominantBaseline: string;
-    emptyCells: string | null;
+    emptyCells: string;
     enableBackground: string | null;
     fill: string;
     fillOpacity: string;
@@ -2849,6 +2849,7 @@ interface CSSStyleDeclaration {
     flexGrow: string;
     flexShrink: string;
     flexWrap: string;
+    float: string;
     floodColor: string;
     floodOpacity: string;
     font: string;
@@ -2888,7 +2889,7 @@ interface CSSStyleDeclaration {
     gridTemplateAreas: string;
     gridTemplateColumns: string;
     gridTemplateRows: string;
-    height: string | null;
+    height: string;
     hyphens: string;
     imageOrientation: string;
     imageRendering: string;
@@ -2903,25 +2904,25 @@ interface CSSStyleDeclaration {
     layoutGridLine: string | null;
     layoutGridMode: string | null;
     layoutGridType: string | null;
-    left: string | null;
+    left: string;
     readonly length: number;
     letterSpacing: string;
     lightingColor: string;
     lineBreak: string;
-    lineHeight: string | null;
-    listStyle: string | null;
-    listStyleImage: string | null;
-    listStylePosition: string | null;
-    listStyleType: string | null;
-    margin: string | null;
+    lineHeight: string;
+    listStyle: string;
+    listStyleImage: string;
+    listStylePosition: string;
+    listStyleType: string;
+    margin: string;
     marginBlockEnd: string;
     marginBlockStart: string;
-    marginBottom: string | null;
+    marginBottom: string;
     marginInlineEnd: string;
     marginInlineStart: string;
-    marginLeft: string | null;
-    marginRight: string | null;
-    marginTop: string | null;
+    marginLeft: string;
+    marginRight: string;
+    marginTop: string;
     marker: string | null;
     markerEnd: string | null;
     markerMid: string | null;
@@ -2934,13 +2935,13 @@ interface CSSStyleDeclaration {
     maskSize: string;
     maskType: string;
     maxBlockSize: string;
-    maxHeight: string | null;
+    maxHeight: string;
     maxInlineSize: string;
-    maxWidth: string | null;
+    maxWidth: string;
     minBlockSize: string;
-    minHeight: string | null;
+    minHeight: string;
     minInlineSize: string;
-    minWidth: string | null;
+    minWidth: string;
     msContentZoomChaining: string | null;
     msContentZoomLimit: string | null;
     msContentZoomLimitMax: any;
@@ -2992,7 +2993,7 @@ interface CSSStyleDeclaration {
     objectPosition: string;
     opacity: string | null;
     order: string;
-    orphans: string | null;
+    orphans: string;
     outline: string;
     outlineColor: string;
     outlineOffset: string;
@@ -3003,18 +3004,18 @@ interface CSSStyleDeclaration {
     overflowWrap: string;
     overflowX: string;
     overflowY: string;
-    padding: string | null;
+    padding: string;
     paddingBlockEnd: string;
     paddingBlockStart: string;
-    paddingBottom: string | null;
+    paddingBottom: string;
     paddingInlineEnd: string;
     paddingInlineStart: string;
-    paddingLeft: string | null;
-    paddingRight: string | null;
-    paddingTop: string | null;
-    pageBreakAfter: string | null;
-    pageBreakBefore: string | null;
-    pageBreakInside: string | null;
+    paddingLeft: string;
+    paddingRight: string;
+    paddingTop: string;
+    pageBreakAfter: string;
+    pageBreakBefore: string;
+    pageBreakInside: string;
     readonly parentRule: CSSRule;
     penAction: string | null;
     perspective: string | null;
@@ -3023,10 +3024,10 @@ interface CSSStyleDeclaration {
     placeItems: string;
     placeSelf: string;
     pointerEvents: string | null;
-    position: string | null;
-    quotes: string | null;
+    position: string;
+    quotes: string;
     resize: string;
-    right: string | null;
+    right: string;
     rotate: string | null;
     rowGap: string;
     rubyAlign: string | null;
@@ -3045,7 +3046,7 @@ interface CSSStyleDeclaration {
     strokeOpacity: string;
     strokeWidth: string;
     tabSize: string;
-    tableLayout: string | null;
+    tableLayout: string;
     textAlign: string;
     textAlignLast: string;
     textAnchor: string | null;
@@ -3067,7 +3068,7 @@ interface CSSStyleDeclaration {
     textShadow: string;
     textTransform: string;
     textUnderlinePosition: string;
-    top: string | null;
+    top: string;
     touchAction: string;
     transform: string;
     transformBox: string;
@@ -3082,7 +3083,7 @@ interface CSSStyleDeclaration {
     unicodeBidi: string;
     userSelect: string;
     verticalAlign: string;
-    visibility: string | null;
+    visibility: string;
     /** @deprecated */
     webkitAlignContent: string;
     /** @deprecated */
@@ -3238,14 +3239,14 @@ interface CSSStyleDeclaration {
     webkitUserSelect: string | null;
     webkitWritingMode: string | null;
     whiteSpace: string;
-    widows: string | null;
-    width: string | null;
+    widows: string;
+    width: string;
     willChange: string;
     wordBreak: string;
     wordSpacing: string;
     wordWrap: string;
     writingMode: string;
-    zIndex: string | null;
+    zIndex: string;
     zoom: string | null;
     getPropertyPriority(propertyName: string): string;
     getPropertyValue(propertyName: string): string;

diff --git a/inputfiles/idl/CSS2 Box.widl b/inputfiles/idl/CSS2 Box.widl
@@ -0,0 +1,32 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString marginTop;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString marginBottom;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString marginRight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString marginLeft;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString margin;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString paddingTop;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString paddingRight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString paddingBottom;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString paddingLeft;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString padding;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderTopWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderRightWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderBottomWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderLeftWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderTopColor;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderRightColor;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderBottomColor;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderLeftColor;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderColor;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderTopStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderRightStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderBottomStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderLeftStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderTop;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderRight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderBottom;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderLeft;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString border;
+};
diff --git a/inputfiles/idl/CSS2 Generated content.widl b/inputfiles/idl/CSS2 Generated content.widl
@@ -0,0 +1,10 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString content;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString quotes;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString counterReset;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString counterIncrement;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString listStyleType;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString listStyleImage;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString listStylePosition;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString listStyle;
+};
diff --git a/inputfiles/idl/CSS2 Paged media.widl b/inputfiles/idl/CSS2 Paged media.widl
@@ -0,0 +1,7 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString pageBreakBefore;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString pageBreakAfter;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString pageBreakInside;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString orphans;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString widows;
+};
diff --git a/inputfiles/idl/CSS2 Tables.widl b/inputfiles/idl/CSS2 Tables.widl
@@ -0,0 +1,7 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString captionSide;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString tableLayout;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderCollapse;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString borderSpacing;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString emptyCells;
+};
diff --git a/inputfiles/idl/CSS2 Text.widl b/inputfiles/idl/CSS2 Text.widl
@@ -0,0 +1,9 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString textIndent;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString textAlign;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString textDecoration;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString letterSpacing;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString wordSpacing;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString textTransform;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString whiteSpace;
+};
diff --git a/inputfiles/idl/CSS2 Visual effect.widl b/inputfiles/idl/CSS2 Visual effect.widl
@@ -0,0 +1,5 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflow;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString clip;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString visibility;
+};
diff --git a/inputfiles/idl/CSS2 Visual formatting details.widl b/inputfiles/idl/CSS2 Visual formatting details.widl
@@ -0,0 +1,10 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString width;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString minWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString maxWidth;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString height;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString minHeight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString maxHeight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString lineHeight;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString verticalAlign;
+};
diff --git a/inputfiles/idl/CSS2 Visual formatting.widl b/inputfiles/idl/CSS2 Visual formatting.widl
@@ -0,0 +1,13 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString display;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString position;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString top;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString right;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString bottom;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString left;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString _float;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString clear;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString zIndex;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString direction;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString unicodeBidi;
+};
diff --git a/inputfiles/idlSources.json b/inputfiles/idlSources.json
@@ -104,6 +104,38 @@
         "url": "https://www.w3.org/TR/css-writing-modes-3/",
         "title": "CSS Writing Modes"
     },
+    {
+        "url": "https://www.w3.org/TR/CSS22/box.html",
+        "title": "CSS2 Box"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/generate.html",
+        "title": "CSS2 Generated content"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/page.html",
+        "title": "CSS2 Paged media"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/tables.html",
+        "title": "CSS2 Tables"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/text.html",
+        "title": "CSS2 Text"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/visufx.html",
+        "title": "CSS2 Visual effect"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/visuren.html",
+        "title": "CSS2 Visual formatting"
+    },
+    {
+        "url": "https://www.w3.org/TR/CSS22/visudet.html",
+        "title": "CSS2 Visual formatting details"
+    },
     {
         "url": "https://w3c.github.io/deviceorientation/",
         "title": "DeviceOrientation Event"