diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 8928814cb..f2fe8c4ef 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -2740,7 +2740,7 @@ interface CSSStyleDeclaration {
     animationName: string;
     animationPlayState: string;
     animationTimingFunction: string;
-    backfaceVisibility: string | null;
+    backfaceVisibility: string;
     background: string;
     backgroundAttachment: string;
     backgroundClip: string;
@@ -3018,8 +3018,8 @@ interface CSSStyleDeclaration {
     pageBreakInside: string;
     readonly parentRule: CSSRule;
     penAction: string | null;
-    perspective: string | null;
-    perspectiveOrigin: string | null;
+    perspective: string;
+    perspectiveOrigin: string;
     placeContent: string;
     placeItems: string;
     placeSelf: string;
@@ -3028,12 +3028,12 @@ interface CSSStyleDeclaration {
     quotes: string;
     resize: string;
     right: string;
-    rotate: string | null;
+    rotate: string;
     rowGap: string;
     rubyAlign: string | null;
     rubyOverhang: string | null;
     rubyPosition: string | null;
-    scale: string | null;
+    scale: string;
     scrollBehavior: string;
     stopColor: string | null;
     stopOpacity: string | null;
@@ -3073,13 +3073,13 @@ interface CSSStyleDeclaration {
     transform: string;
     transformBox: string;
     transformOrigin: string;
-    transformStyle: string | null;
+    transformStyle: string;
     transition: string;
     transitionDelay: string;
     transitionDuration: string;
     transitionProperty: string;
     transitionTimingFunction: string;
-    translate: string | null;
+    translate: string;
     unicodeBidi: string;
     userSelect: string;
     verticalAlign: string;
diff --git a/inputfiles/idl/CSS Transforms Level 2.widl b/inputfiles/idl/CSS Transforms Level 2.widl
new file mode 100644
index 000000000..9a8d66373
--- /dev/null
+++ b/inputfiles/idl/CSS Transforms Level 2.widl	
@@ -0,0 +1,9 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString translate;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString rotate;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString scale;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString transformStyle;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString perspective;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString perspectiveOrigin;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString backfaceVisibility;
+};
diff --git a/inputfiles/idlSources.json b/inputfiles/idlSources.json
index 56feeeae9..30ffa2d07 100644
--- a/inputfiles/idlSources.json
+++ b/inputfiles/idlSources.json
@@ -96,6 +96,10 @@
         "url": "https://www.w3.org/TR/css-transforms-1/",
         "title": "CSS Transforms"
     },
+    {
+        "url": "https://drafts.csswg.org/css-transforms-2/",
+        "title": "CSS Transforms Level 2"
+    },
     {
         "url": "https://www.w3.org/TR/css-will-change/",
         "title": "CSS Will Change"