<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg">
<defs>
<pattern id="pattern" width="1000000000" height="1000000000" patternUnits="userSpaceOnUse">
<rect x="0" y="0" width="1000000000" height="1000000000" fill="red" style="stroke:none" />
</pattern>
</defs>
<rect width="100" height="100" x="10" y="300" fill="url(#pattern)" />
</svg>