diff --git a/Libraries/LibWeb/CSS/CSSStyleValue.cpp b/Libraries/LibWeb/CSS/CSSStyleValue.cpp
index 6157a2d06f7..db0a928b68a 100644
--- a/Libraries/LibWeb/CSS/CSSStyleValue.cpp
+++ b/Libraries/LibWeb/CSS/CSSStyleValue.cpp
@@ -457,7 +457,21 @@ int CSSStyleValue::to_font_slope() const
             return oblique_slope;
         case Keyword::Normal:
         default:
-            break;
+            static int normal_slope = Gfx::name_to_slope("Normal"sv);
+            return normal_slope;
+        }
+    } else if (is_font_style()) {
+        switch (as_font_style().font_style()) {
+        case FontStyle::Italic:
+            static int italic_slope = Gfx::name_to_slope("Italic"sv);
+            return italic_slope;
+        case FontStyle::Oblique:
+            static int oblique_slope = Gfx::name_to_slope("Oblique"sv);
+            return oblique_slope;
+        case FontStyle::Normal:
+        default:
+            static int normal_slope = Gfx::name_to_slope("Normal"sv);
+            return normal_slope;
         }
     }
     static int normal_slope = Gfx::name_to_slope("Normal"sv);