diff --git a/Userland/Libraries/LibWeb/CSS/Length.cpp b/Userland/Libraries/LibWeb/CSS/Length.cpp
index b6c140b34e..a2a6e28e26 100644
--- a/Userland/Libraries/LibWeb/CSS/Length.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Length.cpp
@@ -18,6 +18,14 @@
 
 namespace Web::CSS {
 
+Length::FontMetrics::FontMetrics(CSSPixels font_size, Gfx::FontPixelMetrics const& pixel_metrics, CSSPixels line_height)
+    : font_size(font_size)
+    , x_height(pixel_metrics.x_height)
+    , zero_advance(pixel_metrics.advance_of_ascii_zero + pixel_metrics.glyph_spacing)
+    , line_height(line_height)
+{
+}
+
 Length::Length(int value, Type type)
     : m_type(type)
     , m_value(value)
@@ -59,22 +67,21 @@ Length Length::resolved(Layout::Node const& layout_node) const
     return *this;
 }
 
-CSSPixels Length::relative_length_to_px(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+CSSPixels Length::relative_length_to_px(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const
 {
     switch (m_type) {
     case Type::Em:
-        return m_value * font_size;
+        return m_value * font_metrics.font_size;
     case Type::Rem:
-        return m_value * root_font_size;
+        return m_value * root_font_metrics.font_size;
     case Type::Ex:
         return m_value * font_metrics.x_height;
     case Type::Ch:
-        // FIXME: Use layout_node.font().pixel_size() when writing-mode is not horizontal-tb (it has to be implemented first)
-        return m_value * (font_metrics.advance_of_ascii_zero + font_metrics.glyph_spacing);
+        return m_value * font_metrics.zero_advance;
     case Type::Lh:
-        return m_value * line_height;
+        return m_value * font_metrics.line_height;
     case Type::Rlh:
-        return m_value * root_line_height;
+        return m_value * root_font_metrics.line_height;
     case Type::Vw:
         return viewport_rect.width() * (m_value / 100);
     case Type::Vh:
@@ -99,7 +106,19 @@ CSSPixels Length::to_px(Layout::Node const& layout_node) const
     auto* root_element = layout_node.document().document_element();
     if (!root_element || !root_element->layout_node())
         return 0;
-    return to_px(viewport_rect, layout_node.font().pixel_metrics(), layout_node.computed_values().font_size(), root_element->layout_node()->computed_values().font_size(), layout_node.line_height(), root_element->layout_node()->line_height());
+
+    FontMetrics font_metrics {
+        layout_node.computed_values().font_size(),
+        layout_node.font().pixel_metrics(),
+        layout_node.line_height()
+    };
+    FontMetrics root_font_metrics {
+        root_element->layout_node()->computed_values().font_size(),
+        root_element->layout_node()->font().pixel_metrics(),
+        root_element->layout_node()->line_height()
+    };
+
+    return to_px(viewport_rect, font_metrics, root_font_metrics);
 }
 
 ErrorOr<String> Length::to_string() const
@@ -193,20 +212,20 @@ Optional<Length::Type> Length::unit_from_name(StringView name)
     return {};
 }
 
-Optional<Length> Length::absolutize(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+Optional<Length> Length::absolutize(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const
 {
     if (is_px())
         return {};
     if (is_absolute() || is_relative()) {
-        auto px = to_px(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
+        auto px = to_px(viewport_rect, font_metrics, root_font_metrics);
         return CSS::Length::make_px(px);
     }
     return {};
 }
 
-Length Length::absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+Length Length::absolutized(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const
 {
-    return absolutize(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height).value_or(*this);
+    return absolutize(viewport_rect, font_metrics, root_font_metrics).value_or(*this);
 }
 
 }
diff --git a/Userland/Libraries/LibWeb/CSS/Length.h b/Userland/Libraries/LibWeb/CSS/Length.h
index 0b7d977294..58c08c9849 100644
--- a/Userland/Libraries/LibWeb/CSS/Length.h
+++ b/Userland/Libraries/LibWeb/CSS/Length.h
@@ -44,6 +44,15 @@ public:
         Auto,
     };
 
+    struct FontMetrics {
+        FontMetrics(CSSPixels font_size, Gfx::FontPixelMetrics const&, CSSPixels line_height);
+
+        CSSPixels font_size;
+        CSSPixels x_height;
+        CSSPixels zero_advance;
+        CSSPixels line_height;
+    };
+
     static Optional<Type> unit_from_name(StringView);
 
     Length(int value, Type type);
@@ -98,12 +107,12 @@ public:
 
     CSSPixels to_px(Layout::Node const&) const;
 
-    ALWAYS_INLINE CSSPixels to_px(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+    ALWAYS_INLINE CSSPixels to_px(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const
     {
         if (is_auto())
             return 0;
         if (is_relative())
-            return relative_length_to_px(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
+            return relative_length_to_px(viewport_rect, font_metrics, root_font_metrics);
         return absolute_length_to_px();
     }
 
@@ -138,11 +147,11 @@ public:
         return m_type == other.m_type && m_value == other.m_value;
     }
 
-    CSSPixels relative_length_to_px(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const;
+    CSSPixels relative_length_to_px(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const;
 
     // Returns empty optional if it's already absolute.
-    Optional<Length> absolutize(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const;
-    Length absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const;
+    Optional<Length> absolutize(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const;
+    Length absolutized(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const;
 
 private:
     char const* unit_name() const;
diff --git a/Userland/Libraries/LibWeb/CSS/MediaQuery.cpp b/Userland/Libraries/LibWeb/CSS/MediaQuery.cpp
index 6f9229f2d9..ef6c576a53 100644
--- a/Userland/Libraries/LibWeb/CSS/MediaQuery.cpp
+++ b/Userland/Libraries/LibWeb/CSS/MediaQuery.cpp
@@ -167,11 +167,10 @@ bool MediaFeature::compare(HTML::Window const& window, MediaFeatureValue left, C
 
             auto const& initial_font = window.associated_document().style_computer().initial_font();
             Gfx::FontPixelMetrics const& initial_font_metrics = initial_font.pixel_metrics();
-            float initial_font_size = initial_font.presentation_size();
-            float initial_line_height = initial_font_metrics.line_spacing();
+            Length::FontMetrics font_metrics { static_cast<CSSPixels>(initial_font.presentation_size()), initial_font_metrics, initial_font_metrics.line_spacing() };
 
-            left_px = left.length().to_px(viewport_rect, initial_font_metrics, initial_font_size, initial_font_size, initial_line_height, initial_line_height);
-            right_px = right.length().to_px(viewport_rect, initial_font_metrics, initial_font_size, initial_font_size, initial_line_height, initial_line_height);
+            left_px = left.length().to_px(viewport_rect, font_metrics, font_metrics);
+            right_px = right.length().to_px(viewport_rect, font_metrics, font_metrics);
         }
 
         switch (comparison) {
diff --git a/Userland/Libraries/LibWeb/CSS/StyleComputer.cpp b/Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
index 29636cf5ab..2c8c4512d7 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
@@ -1049,9 +1049,9 @@ CSSPixels StyleComputer::root_element_font_size() const
 
     auto root_value = computed_root_style->property(CSS::PropertyID::FontSize);
 
-    auto font_metrics = computed_root_style->computed_font().pixel_metrics();
-    auto line_height = font_metrics.line_spacing();
-    return root_value->to_length().to_px(viewport_rect(), font_metrics, default_root_element_font_size, default_root_element_font_size, line_height, line_height);
+    auto font_pixel_metrics = computed_root_style->computed_font().pixel_metrics();
+    Length::FontMetrics font_metrics { default_root_element_font_size, font_pixel_metrics, font_pixel_metrics.line_spacing() };
+    return root_value->to_length().to_px(viewport_rect(), font_metrics, font_metrics);
 }
 
 CSSPixels StyleComputer::root_element_line_height() const
@@ -1066,10 +1066,9 @@ CSSPixels StyleComputer::root_element_line_height() const
     if (!computed_root_style)
         return default_root_element_line_height;
 
-    auto font_metrics = computed_root_style->computed_font().pixel_metrics();
-    auto font_size = root_element_font_size();
-    auto line_height = font_metrics.line_spacing();
-    return computed_root_style->line_height(viewport_rect(), font_metrics, font_size, font_size, line_height, line_height);
+    auto font_pixel_metrics = computed_root_style->computed_font().pixel_metrics();
+    Length::FontMetrics font_metrics { root_element_font_size(), font_pixel_metrics, font_pixel_metrics.line_spacing() };
+    return computed_root_style->line_height(viewport_rect(), font_metrics, font_metrics);
 }
 
 void StyleComputer::compute_font(StyleProperties& style, DOM::Element const* element, Optional<CSS::Selector::PseudoElement> pseudo_element) const
@@ -1218,11 +1217,14 @@ void StyleComputer::compute_font(StyleProperties& style, DOM::Element const* ele
         auto root_font_size = root_element_font_size();
         auto root_line_height = root_element_line_height();
 
-        Gfx::FontPixelMetrics font_metrics;
+        Gfx::FontPixelMetrics font_pixel_metrics;
         if (parent_element && parent_element->computed_css_values())
-            font_metrics = parent_element->computed_css_values()->computed_font().pixel_metrics();
+            font_pixel_metrics = parent_element->computed_css_values()->computed_font().pixel_metrics();
         else
-            font_metrics = Platform::FontPlugin::the().default_font().pixel_metrics();
+            font_pixel_metrics = Platform::FontPlugin::the().default_font().pixel_metrics();
+
+        // FIXME: Use metrics from root font!!!
+        Length::FontMetrics root_font_metrics { root_font_size, font_pixel_metrics, root_line_height };
 
         auto parent_font_size = [&]() -> CSSPixels {
             if (!parent_element || !parent_element->computed_css_values())
@@ -1231,8 +1233,10 @@ void StyleComputer::compute_font(StyleProperties& style, DOM::Element const* ele
             if (value->is_length()) {
                 auto length = static_cast<LengthStyleValue const&>(*value).to_length();
                 auto parent_line_height = parent_or_root_element_line_height(parent_element, {});
-                if (length.is_absolute() || length.is_relative())
-                    return length.to_px(viewport_rect(), font_metrics, font_size_in_px, root_font_size, parent_line_height, root_line_height);
+                if (length.is_absolute() || length.is_relative()) {
+                    Length::FontMetrics font_metrics { font_size_in_px, font_pixel_metrics, parent_line_height };
+                    return length.to_px(viewport_rect(), font_metrics, root_font_metrics);
+                }
             }
             return font_size_in_px;
         };
@@ -1251,7 +1255,8 @@ void StyleComputer::compute_font(StyleProperties& style, DOM::Element const* ele
         }
         if (maybe_length.has_value()) {
             auto parent_line_height = parent_or_root_element_line_height(element, pseudo_element);
-            auto px = maybe_length.value().to_px(viewport_rect(), font_metrics, parent_font_size(), root_font_size, parent_line_height, root_line_height).value();
+            Length::FontMetrics font_metrics { parent_font_size(), font_pixel_metrics, parent_line_height };
+            auto px = maybe_length.value().to_px(viewport_rect(), font_metrics, root_font_metrics).value();
             if (px != 0)
                 font_size_in_px = px;
         }
@@ -1379,11 +1384,17 @@ CSSPixels StyleComputer::parent_or_root_element_line_height(DOM::Element const*
     auto root_font_size = root_element_font_size();
     auto root_line_height = root_element_line_height();
     auto* computed_values = parent_element->computed_css_values();
+    auto parent_font_pixel_metrics = parent_element->layout_node()
+        ? parent_element->layout_node()->font().pixel_metrics()
+        : Gfx::FontDatabase::default_font().pixel_metrics();
     auto parent_font_size = computed_values->property(CSS::PropertyID::FontSize)->to_length();
     // FIXME: Can the parent font size be non-absolute here?
     auto parent_font_size_value = parent_font_size.is_absolute() ? parent_font_size.absolute_length_to_px() : root_font_size;
     auto parent_parent_line_height = parent_or_root_element_line_height(parent_element, {});
-    return computed_values->line_height(viewport_rect(), computed_values->computed_font().pixel_metrics(), parent_font_size_value, root_font_size, parent_parent_line_height, root_line_height);
+    Length::FontMetrics parent_font_metrics { parent_font_size_value, parent_font_pixel_metrics, parent_parent_line_height };
+    // FIXME: Use root font metrics!!!
+    Length::FontMetrics root_font_metrics { root_font_size, parent_font_pixel_metrics, root_line_height };
+    return computed_values->line_height(viewport_rect(), parent_font_metrics, root_font_metrics);
 }
 
 void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const* element, Optional<CSS::Selector::PseudoElement> pseudo_element) const
@@ -1391,9 +1402,15 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
     auto root_line_height = root_element_line_height();
     auto parent_or_root_line_height = parent_or_root_element_line_height(element, pseudo_element);
 
-    auto font_metrics = style.computed_font().pixel_metrics();
+    auto font_pixel_metrics = style.computed_font().pixel_metrics();
     auto root_font_size = root_element_font_size();
-    auto font_size = style.property(CSS::PropertyID::FontSize)->to_length().to_px(viewport_rect(), font_metrics, root_font_size, root_font_size, parent_or_root_line_height, root_line_height);
+
+    Length::FontMetrics font_metrics { root_font_size, font_pixel_metrics, parent_or_root_line_height };
+    // FIXME: Use root font metrics!!!
+    Length::FontMetrics root_font_metrics { root_font_size, font_pixel_metrics, root_line_height };
+
+    auto font_size = style.property(CSS::PropertyID::FontSize)->to_length().to_px(viewport_rect(), font_metrics, root_font_metrics);
+    font_metrics.font_size = font_size;
 
     // NOTE: Percentage line-height values are relative to the font-size of the element.
     //       We have to resolve them right away, so that the *computed* line-height is ready for inheritance.
@@ -1405,7 +1422,8 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
             Length::make_px(font_size * line_height_value_slot->as_percentage().percentage().as_fraction()));
     }
 
-    auto line_height = style.line_height(viewport_rect(), font_metrics, font_size.value(), root_font_size.value(), parent_or_root_line_height, root_line_height);
+    auto line_height = style.line_height(viewport_rect(), font_metrics, root_font_metrics);
+    font_metrics.line_height = line_height;
 
     // NOTE: line-height might be using lh which should be resolved against the parent line height (like we did here already)
     if (line_height_value_slot && line_height_value_slot->is_length())
@@ -1415,7 +1433,7 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
         auto& value_slot = style.m_property_values[i];
         if (!value_slot)
             continue;
-        value_slot = value_slot->absolutized(viewport_rect(), font_metrics, font_size.value(), root_font_size.value(), line_height, root_line_height);
+        value_slot = value_slot->absolutized(viewport_rect(), font_metrics, root_font_metrics);
     }
 }
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
index bb4e5b8ade..9d121cb76c 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
@@ -153,34 +153,34 @@ NonnullRefPtr<Gfx::Font const> StyleProperties::font_fallback(bool monospace, bo
 }
 
 // FIXME: This implementation is almost identical to line_height(Layout::Node) below. Maybe they can be combined somehow.
-CSSPixels StyleProperties::line_height(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels parent_line_height, CSSPixels root_line_height) const
+CSSPixels StyleProperties::line_height(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
 {
     auto line_height = property(CSS::PropertyID::LineHeight);
 
     if (line_height->is_identifier() && line_height->to_identifier() == ValueID::Normal)
-        return font_metrics.line_spacing();
+        return font_metrics.line_height;
 
     if (line_height->is_length()) {
         auto line_height_length = line_height->to_length();
         if (!line_height_length.is_auto())
-            return line_height_length.to_px(viewport_rect, font_metrics, font_size, root_font_size, parent_line_height, root_line_height);
+            return line_height_length.to_px(viewport_rect, font_metrics, root_font_metrics);
     }
 
     if (line_height->is_numeric())
-        return Length(line_height->to_number(), Length::Type::Em).to_px(viewport_rect, font_metrics, font_size, root_font_size, parent_line_height, root_line_height);
+        return Length(line_height->to_number(), Length::Type::Em).to_px(viewport_rect, font_metrics, root_font_metrics);
 
     if (line_height->is_percentage()) {
         // Percentages are relative to 1em. https://www.w3.org/TR/css-inline-3/#valdef-line-height-percentage
         auto& percentage = line_height->as_percentage().percentage();
-        return Length(percentage.as_fraction(), Length::Type::Em).to_px(viewport_rect, font_metrics, font_size, root_font_size, parent_line_height, root_line_height);
+        return Length(percentage.as_fraction(), Length::Type::Em).to_px(viewport_rect, font_metrics, root_font_metrics);
     }
 
     if (line_height->is_calculated()) {
         // FIXME: Handle `line-height: calc(...)` despite not having a LayoutNode here.
-        return font_metrics.line_spacing();
+        return font_metrics.line_height;
     }
 
-    return font_metrics.line_spacing();
+    return font_metrics.line_height;
 }
 
 CSSPixels StyleProperties::line_height(Layout::Node const& layout_node) const
diff --git a/Userland/Libraries/LibWeb/CSS/StyleProperties.h b/Userland/Libraries/LibWeb/CSS/StyleProperties.h
index 179ba7968e..856beb2eb0 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleProperties.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleProperties.h
@@ -111,7 +111,7 @@ public:
         m_font = move(font);
     }
 
-    CSSPixels line_height(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const&, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const;
+    CSSPixels line_height(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
     CSSPixels line_height(Layout::Node const&) const;
 
     bool operator==(StyleProperties const&) const;
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
index 256b857b42..22d1c32443 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
@@ -338,7 +338,7 @@ StyleValueList const& StyleValue::as_value_list() const
     return static_cast<StyleValueList const&>(*this);
 }
 
-ValueComparingNonnullRefPtr<StyleValue const> StyleValue::absolutized(CSSPixelRect const&, Gfx::FontPixelMetrics const&, CSSPixels, CSSPixels, CSSPixels, CSSPixels) const
+ValueComparingNonnullRefPtr<StyleValue const> StyleValue::absolutized(CSSPixelRect const&, Length::FontMetrics const&, Length::FontMetrics const&) const
 {
     return *this;
 }
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValue.h
index 85edc7fa08..f71a0af5ae 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValue.h
@@ -287,7 +287,7 @@ public:
     virtual bool has_number() const { return false; }
     virtual bool has_integer() const { return false; }
 
-    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const;
+    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
 
     virtual Color to_color(Optional<Layout::NodeWithStyle const&>) const { return {}; }
     ValueID to_identifier() const;
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.cpp
index 3001f95899..0ade945a95 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.cpp
@@ -18,16 +18,16 @@ ErrorOr<String> BorderRadiusStyleValue::to_string() const
     return String::formatted("{} / {}", TRY(m_properties.horizontal_radius.to_string()), TRY(m_properties.vertical_radius.to_string()));
 }
 
-ValueComparingNonnullRefPtr<StyleValue const> BorderRadiusStyleValue::absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+ValueComparingNonnullRefPtr<StyleValue const> BorderRadiusStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
 {
     if (m_properties.horizontal_radius.is_percentage() && m_properties.vertical_radius.is_percentage())
         return *this;
     auto absolutized_horizontal_radius = m_properties.horizontal_radius;
     auto absolutized_vertical_radius = m_properties.vertical_radius;
     if (!m_properties.horizontal_radius.is_percentage())
-        absolutized_horizontal_radius = m_properties.horizontal_radius.length().absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
+        absolutized_horizontal_radius = m_properties.horizontal_radius.length().absolutized(viewport_rect, font_metrics, root_font_metrics);
     if (!m_properties.vertical_radius.is_percentage())
-        absolutized_vertical_radius = m_properties.vertical_radius.length().absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
+        absolutized_vertical_radius = m_properties.vertical_radius.length().absolutized(viewport_rect, font_metrics, root_font_metrics);
     return BorderRadiusStyleValue::create(absolutized_horizontal_radius, absolutized_vertical_radius);
 }
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h
index 29c3897634..85ccc0aa39 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h
@@ -38,7 +38,7 @@ private:
     {
     }
 
-    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const override;
+    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
 
     struct Properties {
         bool is_elliptical;
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
index 5cdf60da94..0ae4990c92 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
@@ -27,9 +27,9 @@ ValueComparingNonnullRefPtr<LengthStyleValue> LengthStyleValue::create(Length co
     return adopt_ref(*new LengthStyleValue(length));
 }
 
-ValueComparingNonnullRefPtr<StyleValue const> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+ValueComparingNonnullRefPtr<StyleValue const> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
 {
-    if (auto length = m_length.absolutize(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height); length.has_value())
+    if (auto length = m_length.absolutize(viewport_rect, font_metrics, root_font_metrics); length.has_value())
         return LengthStyleValue::create(length.release_value());
     return *this;
 }
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.h
index 37d43cca64..e100f349e3 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.h
@@ -23,7 +23,7 @@ public:
     virtual bool has_length() const override { return true; }
     virtual ErrorOr<String> to_string() const override { return m_length.to_string(); }
     virtual Length to_length() const override { return m_length; }
-    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const override;
+    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
 
     bool properties_equal(LengthStyleValue const& other) const { return m_length == other.m_length; }
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
index feb9535510..1b75767c2f 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
@@ -20,12 +20,12 @@ ErrorOr<String> ShadowStyleValue::to_string() const
     return builder.to_string();
 }
 
-ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
+ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
 {
-    auto absolutized_offset_x = m_properties.offset_x.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
-    auto absolutized_offset_y = m_properties.offset_y.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
-    auto absolutized_blur_radius = m_properties.blur_radius.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
-    auto absolutized_spread_distance = m_properties.spread_distance.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
+    auto absolutized_offset_x = m_properties.offset_x.absolutized(viewport_rect, font_metrics, root_font_metrics);
+    auto absolutized_offset_y = m_properties.offset_y.absolutized(viewport_rect, font_metrics, root_font_metrics);
+    auto absolutized_blur_radius = m_properties.blur_radius.absolutized(viewport_rect, font_metrics, root_font_metrics);
+    auto absolutized_spread_distance = m_properties.spread_distance.absolutized(viewport_rect, font_metrics, root_font_metrics);
     return ShadowStyleValue::create(m_properties.color, absolutized_offset_x, absolutized_offset_y, absolutized_blur_radius, absolutized_spread_distance, m_properties.placement);
 }
 
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.h
index 3af4ec7bbb..3f1afae91b 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.h
@@ -46,7 +46,7 @@ private:
     {
     }
 
-    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const override;
+    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
 
     struct Properties {
         Color color;