diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index 842866bc6e138e..5c30e9da923ec2 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -563,7 +563,8 @@ void Document::update_layout()
         m_layout_root = static_ptr_cast<Layout::InitialContainingBlock>(tree_builder.build(*this));
     }
 
-    Layout::BlockFormattingContext root_formatting_context(*m_layout_root, nullptr);
+    Layout::FormattingState root_formatting_state;
+    Layout::BlockFormattingContext root_formatting_context(root_formatting_state, *m_layout_root, nullptr);
     m_layout_root->build_stacking_context_tree();
     m_layout_root->set_content_size(viewport_rect.size().to_type<float>());
 
diff --git a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
index 43955c9454f675..a5d7ebfa845e69 100644
--- a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
@@ -18,8 +18,8 @@
 
 namespace Web::Layout {
 
-BlockFormattingContext::BlockFormattingContext(BlockContainer& root, FormattingContext* parent)
-    : FormattingContext(Type::Block, root, parent)
+BlockFormattingContext::BlockFormattingContext(FormattingState& state, BlockContainer& root, FormattingContext* parent)
+    : FormattingContext(Type::Block, state, root, parent)
 {
 }
 
@@ -382,7 +382,7 @@ void BlockFormattingContext::layout_inline_children(BlockContainer& block_contai
 {
     VERIFY(block_container.children_are_inline());
 
-    InlineFormattingContext context(block_container, *this);
+    InlineFormattingContext context(m_state, block_container, *this);
     context.run(block_container, layout_mode);
 }
 
diff --git a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.h b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.h
index c9d7c18158a3b1..05b584fd0b9d84 100644
--- a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.h
@@ -16,7 +16,7 @@ namespace Web::Layout {
 // https://www.w3.org/TR/css-display/#block-formatting-context
 class BlockFormattingContext : public FormattingContext {
 public:
-    explicit BlockFormattingContext(BlockContainer&, FormattingContext* parent);
+    explicit BlockFormattingContext(FormattingState&, BlockContainer&, FormattingContext* parent);
     ~BlockFormattingContext();
 
     virtual void run(Box&, LayoutMode) override;
diff --git a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
index 525663dc194eb1..72a018baa32481 100644
--- a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
@@ -32,8 +32,8 @@ static bool is_undefined_or_auto(Optional<CSS::LengthPercentage> const& length_p
     return length_percentage->is_length() && length_percentage->length().is_auto();
 }
 
-FlexFormattingContext::FlexFormattingContext(Box& flex_container, FormattingContext* parent)
-    : FormattingContext(Type::Flex, flex_container, parent)
+FlexFormattingContext::FlexFormattingContext(FormattingState& state, Box& flex_container, FormattingContext* parent)
+    : FormattingContext(Type::Flex, state, flex_container, parent)
     , m_flex_direction(flex_container.computed_values().flex_direction())
 {
 }
@@ -471,9 +471,9 @@ float FlexFormattingContext::layout_for_maximum_main_size(Box& box)
 
     if (!main_constrained && box.children_are_inline()) {
         auto& block_container = verify_cast<BlockContainer>(box);
-        BlockFormattingContext bfc(block_container, this);
+        BlockFormattingContext bfc(m_state, block_container, this);
         bfc.run(box, LayoutMode::Default);
-        InlineFormattingContext ifc(block_container, bfc);
+        InlineFormattingContext ifc(m_state, block_container, bfc);
 
         if (is_row_layout()) {
             ifc.run(box, LayoutMode::OnlyRequiredLineBreaks);
@@ -821,9 +821,9 @@ float FlexFormattingContext::determine_hypothetical_cross_size_of_item(Box& box)
 
     if (!cross_constrained && box.children_are_inline()) {
         auto& block_container = verify_cast<BlockContainer>(box);
-        BlockFormattingContext bfc(block_container, this);
+        BlockFormattingContext bfc(m_state, block_container, this);
         bfc.run(box, LayoutMode::Default);
-        InlineFormattingContext ifc(block_container, bfc);
+        InlineFormattingContext ifc(m_state, block_container, bfc);
         ifc.run(box, LayoutMode::OnlyRequiredLineBreaks);
 
         return is_row_layout() ? box.content_height() : box.content_width();
@@ -831,7 +831,7 @@ float FlexFormattingContext::determine_hypothetical_cross_size_of_item(Box& box)
     if (is_row_layout())
         return BlockFormattingContext::compute_theoretical_height(box);
 
-    BlockFormattingContext context(verify_cast<BlockContainer>(box), this);
+    BlockFormattingContext context(m_state, verify_cast<BlockContainer>(box), this);
     context.compute_width(box);
     return box.content_width();
 }
diff --git a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.h b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.h
index 0a684de2af1d53..111a146ccc3a38 100644
--- a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.h
@@ -13,7 +13,7 @@ namespace Web::Layout {
 
 class FlexFormattingContext final : public FormattingContext {
 public:
-    FlexFormattingContext(Box& flex_container, FormattingContext* parent);
+    FlexFormattingContext(FormattingState&, Box& flex_container, FormattingContext* parent);
     ~FlexFormattingContext();
 
     virtual bool inhibits_floating() const override { return true; }
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
index a1558eff0b8c3c..68fc5c4a4ce52b 100644
--- a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -19,10 +19,11 @@
 
 namespace Web::Layout {
 
-FormattingContext::FormattingContext(Type type, Box& context_box, FormattingContext* parent)
+FormattingContext::FormattingContext(Type type, FormattingState& state, Box& context_box, FormattingContext* parent)
     : m_type(type)
     , m_parent(parent)
     , m_context_box(context_box)
+    , m_state(state)
 {
 }
 
@@ -82,20 +83,20 @@ OwnPtr<FormattingContext> FormattingContext::create_independent_formatting_conte
     auto child_display = child_box.computed_values().display();
 
     if (is<SVGSVGBox>(child_box))
-        return make<SVGFormattingContext>(child_box, this);
+        return make<SVGFormattingContext>(m_state, child_box, this);
 
     if (child_display.is_flex_inside())
-        return make<FlexFormattingContext>(child_box, this);
+        return make<FlexFormattingContext>(m_state, child_box, this);
 
     if (creates_block_formatting_context(child_box))
-        return make<BlockFormattingContext>(verify_cast<BlockContainer>(child_box), this);
+        return make<BlockFormattingContext>(m_state, verify_cast<BlockContainer>(child_box), this);
 
     if (child_display.is_table_inside())
-        return make<TableFormattingContext>(verify_cast<TableBox>(child_box), this);
+        return make<TableFormattingContext>(m_state, verify_cast<TableBox>(child_box), this);
 
     VERIFY(is_block_formatting_context());
     if (child_box.children_are_inline())
-        return make<InlineFormattingContext>(verify_cast<BlockContainer>(child_box), static_cast<BlockFormattingContext&>(*this));
+        return make<InlineFormattingContext>(m_state, verify_cast<BlockContainer>(child_box), static_cast<BlockFormattingContext&>(*this));
 
     // The child box is a block container that doesn't create its own BFC.
     // It will be formatted by this BFC.
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingContext.h b/Userland/Libraries/LibWeb/Layout/FormattingContext.h
index 48f3216cba3a51..13e4f25fa96e45 100644
--- a/Userland/Libraries/LibWeb/Layout/FormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/FormattingContext.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -8,6 +8,7 @@
 
 #include <AK/OwnPtr.h>
 #include <LibWeb/Forward.h>
+#include <LibWeb/Layout/FormattingState.h>
 
 namespace Web::Layout {
 
@@ -46,7 +47,7 @@ class FormattingContext {
     virtual void parent_context_did_dimension_child_root_box() { }
 
 protected:
-    FormattingContext(Type, Box&, FormattingContext* parent = nullptr);
+    FormattingContext(Type, FormattingState&, Box&, FormattingContext* parent = nullptr);
 
     OwnPtr<FormattingContext> layout_inside(Box&, LayoutMode);
 
@@ -77,6 +78,8 @@ class FormattingContext {
 
     FormattingContext* m_parent { nullptr };
     Box& m_context_box;
+
+    FormattingState& m_state;
 };
 
 }
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingState.h b/Userland/Libraries/LibWeb/Layout/FormattingState.h
new file mode 100644
index 00000000000000..f90ffa29f9c8d2
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Layout/FormattingState.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::Layout {
+
+struct FormattingState {
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
index 4e803f743422df..803b8bf5964007 100644
--- a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
@@ -17,8 +17,8 @@
 
 namespace Web::Layout {
 
-InlineFormattingContext::InlineFormattingContext(BlockContainer& containing_block, BlockFormattingContext& parent)
-    : FormattingContext(Type::Inline, containing_block, &parent)
+InlineFormattingContext::InlineFormattingContext(FormattingState& state, BlockContainer& containing_block, BlockFormattingContext& parent)
+    : FormattingContext(Type::Inline, state, containing_block, &parent)
 {
 }
 
diff --git a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.h b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.h
index b4882a1b6c4b7f..8f683621036259 100644
--- a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.h
@@ -15,7 +15,7 @@ namespace Web::Layout {
 
 class InlineFormattingContext final : public FormattingContext {
 public:
-    InlineFormattingContext(BlockContainer& containing_block, BlockFormattingContext& parent);
+    InlineFormattingContext(FormattingState&, BlockContainer& containing_block, BlockFormattingContext& parent);
     ~InlineFormattingContext();
 
     BlockFormattingContext& parent();
diff --git a/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.cpp
index 8d273aa90507f1..ecb46df05d3b06 100644
--- a/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.cpp
@@ -11,8 +11,8 @@
 
 namespace Web::Layout {
 
-SVGFormattingContext::SVGFormattingContext(Box& box, FormattingContext* parent)
-    : FormattingContext(Type::SVG, box, parent)
+SVGFormattingContext::SVGFormattingContext(FormattingState& state, Box& box, FormattingContext* parent)
+    : FormattingContext(Type::SVG, state, box, parent)
 {
 }
 
diff --git a/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.h b/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.h
index 9fca1c4edc9a57..640b401233ae58 100644
--- a/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/SVGFormattingContext.h
@@ -13,7 +13,7 @@ namespace Web::Layout {
 
 class SVGFormattingContext : public FormattingContext {
 public:
-    explicit SVGFormattingContext(Box&, FormattingContext* parent);
+    explicit SVGFormattingContext(FormattingState&, Box&, FormattingContext* parent);
     ~SVGFormattingContext();
 
     virtual void run(Box&, LayoutMode) override;
diff --git a/Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp
index 508ba34434f715..0b1d28e394f562 100644
--- a/Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp
@@ -16,8 +16,8 @@
 
 namespace Web::Layout {
 
-TableFormattingContext::TableFormattingContext(BlockContainer& block_container, FormattingContext* parent)
-    : BlockFormattingContext(block_container, parent)
+TableFormattingContext::TableFormattingContext(FormattingState& state, BlockContainer& block_container, FormattingContext* parent)
+    : BlockFormattingContext(state, block_container, parent)
 {
 }
 
diff --git a/Userland/Libraries/LibWeb/Layout/TableFormattingContext.h b/Userland/Libraries/LibWeb/Layout/TableFormattingContext.h
index 0567cec5d59ae9..bf9576001c1478 100644
--- a/Userland/Libraries/LibWeb/Layout/TableFormattingContext.h
+++ b/Userland/Libraries/LibWeb/Layout/TableFormattingContext.h
@@ -13,7 +13,7 @@ namespace Web::Layout {
 
 class TableFormattingContext final : public BlockFormattingContext {
 public:
-    explicit TableFormattingContext(BlockContainer&, FormattingContext* parent);
+    explicit TableFormattingContext(FormattingState&, BlockContainer&, FormattingContext* parent);
     ~TableFormattingContext();
 
     virtual void run(Box&, LayoutMode) override;