LibWeb: Add MathML Element presentational hints

Author: https://github.com/lpas
Commit: 96b34ea744
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6252
Reviewed-by: https://github.com/AtkinsSJ
Reviewed-by: https://github.com/gmta ✅

Libraries/LibWeb/MathML/MathMLMiElement.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2025, Lorenz Ackermann, <me@lorenzackermann.xyz>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/MathML/MathMLElement.h>
+
+namespace Web::MathML {
+
+class MathMLMiElement final : public MathMLElement {
+    WEB_PLATFORM_OBJECT(MathMLMiElement, MathMLElement);
+    GC_DECLARE_ALLOCATOR(MathMLMiElement);
+
+public:
+    virtual ~MathMLMiElement() override = default;
+
+private:
+    MathMLMiElement(DOM::Document&, DOM::QualifiedName);
+
+    virtual bool is_presentational_hint(FlyString const&) const override;
+    virtual void apply_presentational_hints(GC::Ref<CSS::CascadedProperties>) const override;
+};
+
+}