diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.cpp
index 17d6be591a..5a476a21f8 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.cpp
@@ -19,6 +19,4 @@ ErrorOr<String> ContentStyleValue::to_string() const
     return m_properties.content->to_string();
 }
 
-bool ContentStyleValue::Properties::operator==(ContentStyleValue::Properties const&) const = default;
-
 }
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.h
index 761fa5501d..c628c0b0ee 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/ContentStyleValue.h
@@ -39,7 +39,7 @@ private:
     struct Properties {
         ValueComparingNonnullRefPtr<StyleValueList> content;
         ValueComparingRefPtr<StyleValueList> alt_text;
-        bool operator==(Properties const&) const;
+        bool operator==(Properties const&) const = default;
     } m_properties;
 };
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.cpp
index 4b5ad35bc0..863067a51c 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.cpp
@@ -40,6 +40,4 @@ ErrorOr<String> GridAreaShorthandStyleValue::to_string() const
     return builder.to_string();
 }
 
-bool GridAreaShorthandStyleValue::Properties::operator==(GridAreaShorthandStyleValue::Properties const&) const = default;
-
 }
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.h
index 7d5e59d237..9f63da82ff 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/GridAreaShorthandStyleValue.h
@@ -44,7 +44,7 @@ private:
         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_start;
         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_end;
         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_end;
-        bool operator==(Properties const&) const;
+        bool operator==(Properties const&) const = default;
     } m_properties;
 };