<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
         "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg">

    <g transform="scale(1e10)">

        <rect x="0" y="0" width="400" height="200" rx="50" ry="50"
            fill="none" stroke="purple" stroke-width="30"/>

    </g>

</svg>