diff --git a/Libraries/LibWeb/CSS/Angle.cpp b/Libraries/LibWeb/CSS/Angle.cpp
index 16e91fef4d3..44fa016ba03 100644
--- a/Libraries/LibWeb/CSS/Angle.cpp
+++ b/Libraries/LibWeb/CSS/Angle.cpp
@@ -29,7 +29,7 @@ Angle Angle::percentage_of(Percentage const& percentage) const
 
 String Angle::to_string() const
 {
-    return MUST(String::formatted("{}deg", to_degrees()));
+    return MUST(String::formatted("{}{}", raw_value(), unit_name()));
 }
 
 double Angle::to_degrees() const
diff --git a/Libraries/LibWeb/CSS/StyleValues/AngleStyleValue.cpp b/Libraries/LibWeb/CSS/StyleValues/AngleStyleValue.cpp
index 2ce2aeddc76..9df73ce5b52 100644
--- a/Libraries/LibWeb/CSS/StyleValues/AngleStyleValue.cpp
+++ b/Libraries/LibWeb/CSS/StyleValues/AngleStyleValue.cpp
@@ -19,8 +19,10 @@ AngleStyleValue::AngleStyleValue(Angle angle)
 
 AngleStyleValue::~AngleStyleValue() = default;
 
-String AngleStyleValue::to_string(SerializationMode) const
+String AngleStyleValue::to_string(SerializationMode serialization_mode) const
 {
+    if (serialization_mode == SerializationMode::ResolvedValue)
+        return MUST(String::formatted("{}deg", m_angle.to_degrees()));
     return m_angle.to_string();
 }
 
diff --git a/Tests/LibWeb/Text/expected/wpt-import/css/css-transforms/parsing/rotate-parsing-valid.txt b/Tests/LibWeb/Text/expected/wpt-import/css/css-transforms/parsing/rotate-parsing-valid.txt
index 06f65152234..6a5263aa9c5 100644
--- a/Tests/LibWeb/Text/expected/wpt-import/css/css-transforms/parsing/rotate-parsing-valid.txt
+++ b/Tests/LibWeb/Text/expected/wpt-import/css/css-transforms/parsing/rotate-parsing-valid.txt
@@ -2,22 +2,21 @@ Harness status: OK
 
 Found 17 tests
 
-2 Pass
-15 Fail
+17 Pass
 Pass	e.style['rotate'] = "none" should set the property value
 Pass	e.style['rotate'] = "0deg" should set the property value
-Fail	e.style['rotate'] = "100 200 300 400grad" should set the property value
-Fail	e.style['rotate'] = "400grad 100 200 300" should set the property value
-Fail	e.style['rotate'] = "0 0 0 400grad" should set the property value
-Fail	e.style['rotate'] = "x 400grad" should set the property value
-Fail	e.style['rotate'] = "400grad x" should set the property value
-Fail	e.style['rotate'] = "0.5 0 0 400grad" should set the property value
-Fail	e.style['rotate'] = "1 0 0 400grad" should set the property value
-Fail	e.style['rotate'] = "y 400grad" should set the property value
-Fail	e.style['rotate'] = "400grad y" should set the property value
-Fail	e.style['rotate'] = "0 0.5 0 400grad" should set the property value
-Fail	e.style['rotate'] = "0 1 0 400grad" should set the property value
-Fail	e.style['rotate'] = "400grad" should set the property value
-Fail	e.style['rotate'] = "400grad z" should set the property value
-Fail	e.style['rotate'] = "0 0 0.5 400grad" should set the property value
-Fail	e.style['rotate'] = "0 0 1 400grad" should set the property value
\ No newline at end of file
+Pass	e.style['rotate'] = "100 200 300 400grad" should set the property value
+Pass	e.style['rotate'] = "400grad 100 200 300" should set the property value
+Pass	e.style['rotate'] = "0 0 0 400grad" should set the property value
+Pass	e.style['rotate'] = "x 400grad" should set the property value
+Pass	e.style['rotate'] = "400grad x" should set the property value
+Pass	e.style['rotate'] = "0.5 0 0 400grad" should set the property value
+Pass	e.style['rotate'] = "1 0 0 400grad" should set the property value
+Pass	e.style['rotate'] = "y 400grad" should set the property value
+Pass	e.style['rotate'] = "400grad y" should set the property value
+Pass	e.style['rotate'] = "0 0.5 0 400grad" should set the property value
+Pass	e.style['rotate'] = "0 1 0 400grad" should set the property value
+Pass	e.style['rotate'] = "400grad" should set the property value
+Pass	e.style['rotate'] = "400grad z" should set the property value
+Pass	e.style['rotate'] = "0 0 0.5 400grad" should set the property value
+Pass	e.style['rotate'] = "0 0 1 400grad" should set the property value
\ No newline at end of file