diff --git a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.cpp b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.cpp
index 693299f573..4410b685a5 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.cpp
+++ b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.cpp
@@ -407,6 +407,8 @@ JS::ThrowCompletionOr<bool> CSSStyleDeclaration::internal_has_property(JS::Prope
 
 JS::ThrowCompletionOr<JS::Value> CSSStyleDeclaration::internal_get(JS::PropertyKey const& name, JS::Value receiver, JS::CacheablePropertyMetadata* cacheable_metadata) const
 {
+    if (name.is_number())
+        return { JS::PrimitiveString::create(vm(), item(name.as_number())) };
     if (!name.is_string())
         return Base::internal_get(name, receiver, cacheable_metadata);
     auto property_id = property_id_from_name(name.to_string());
diff --git a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
index 725ca646bc..66078eb20a 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.idl
@@ -5,7 +5,7 @@ interface CSSStyleDeclaration {
     [CEReactions] attribute CSSOMString cssText;
 
     readonly attribute unsigned long length;
-    CSSOMString item(unsigned long index);
+    getter CSSOMString item(unsigned long index);
 
     CSSOMString getPropertyValue(CSSOMString property);
     CSSOMString getPropertyPriority(CSSOMString property);
@@ -13,4 +13,6 @@ interface CSSStyleDeclaration {
     [CEReactions] undefined setProperty(CSSOMString property, [LegacyNullToEmptyString] CSSOMString value, optional [LegacyNullToEmptyString] CSSOMString priority = "");
     [CEReactions] CSSOMString removeProperty(CSSOMString property);
 
+    // FIXME: readonly attribute CSSRule? parentRule;
+    // FIXME: [CEReactions] attribute [LegacyNullToEmptyString] CSSOMString cssFloat;
 };