1 files changed, 13 insertions, 1 deletions
diff --git a/Userland/Libraries/LibWeb/CSS/Resolution.h b/Userland/Libraries/LibWeb/CSS/Resolution.h
index 390f6b2aa8..6a693775d3 100644
--- a/Userland/Libraries/LibWeb/CSS/Resolution.h
+++ b/Userland/Libraries/LibWeb/CSS/Resolution.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
+ * Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -32,6 +32,18 @@ public:
         return m_type == other.m_type && m_value == other.m_value;
     }
 
+    int operator<=>(Resolution const& other) const
+    {
+        auto this_dots_per_pixel = to_dots_per_pixel();
+        auto other_dots_per_pixel = other.to_dots_per_pixel();
+
+        if (this_dots_per_pixel < other_dots_per_pixel)
+            return -1;
+        if (this_dots_per_pixel > other_dots_per_pixel)
+            return 1;
+        return 0;
+    }
+
 private:
     StringView unit_name() const;