From 6bf537112465288e7ec1e46c7c143f8fa5f52e53 Mon Sep 17 00:00:00 2001
From: Sam Atkins <atkinssj@serenityos.org>
Date: Wed, 19 Apr 2023 11:26:49 +0100
Subject: [PATCH] LibWeb: Properly handle `auto` in
 StyleProperties::length_percentage()

This relied on `auto` being a LengthStyleValue, which soon will not be
true. :^)
---
 Userland/Libraries/LibWeb/CSS/StyleProperties.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
index 1ef078017f..da2bf77e66 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
@@ -114,6 +114,9 @@ Optional<LengthPercentage> StyleProperties::length_percentage(CSS::PropertyID id
     if (value->has_length())
         return value->to_length();
 
+    if (value->has_auto())
+        return LengthPercentage { Length::make_auto() };
+
     return {};
 }