--- /dev/null
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+The sole <RECT /> in this document should be ignored because element
+names are case-sensitive. This isn't really a CSS test, but it isn't
+tested anywhere else, and can obviously affect how the result looks.
+-->
+<svg width="640"
+ height="480"
+ viewBox="0 0 640 480"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:svg="http://www.w3.org/2000/svg">
+
+ <RECT x="0"
+ y="0"
+ width="640"
+ height="480"
+ fill="red"
+ style="this is completely ignored" />
+</svg>