diff --git a/Userland/Libraries/LibWeb/CSS/TransformFunctions.json b/Userland/Libraries/LibWeb/CSS/TransformFunctions.json
index 711488a357e..f0dbe7022f2 100644
--- a/Userland/Libraries/LibWeb/CSS/TransformFunctions.json
+++ b/Userland/Libraries/LibWeb/CSS/TransformFunctions.json
@@ -23,6 +23,15 @@
     "rotate": {
         "parameters": "<angle>"
     },
+    "rotateX": {
+        "parameters": "<angle>"
+    },
+    "rotateY": {
+        "parameters": "<angle>"
+    },
+    "rotateZ": {
+        "parameters": "<angle>"
+    },
     "skew": {
         "parameters": "<angle>{1,2}"
     },
diff --git a/Userland/Libraries/LibWeb/Painting/StackingContext.cpp b/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
index d08d3e6f477..53f1ce8c602 100644
--- a/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
+++ b/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
@@ -251,7 +251,16 @@ Gfx::FloatMatrix4x4 StackingContext::get_transformation_matrix(CSS::Transformati
                 0, 0, 1, 0,
                 0, 0, 0, 1);
         break;
+    case CSS::TransformFunction::RotateX:
+        if (count == 1)
+            return Gfx::rotation_matrix({ 1.0f, 0.0f, 0.0f }, value(0));
+        break;
+    case CSS::TransformFunction::RotateY:
+        if (count == 1)
+            return Gfx::rotation_matrix({ 0.0f, 1.0f, 0.0f }, value(0));
+        break;
     case CSS::TransformFunction::Rotate:
+    case CSS::TransformFunction::RotateZ:
         if (count == 1)
             return Gfx::rotation_matrix({ 0.0f, 0.0f, 1.0f }, value(0));
         break;