<svg xmlns="http://www.w3.org/2000/svg">
    <defs>
        <linearGradient id="gradient">
            <stop offset="0" stop-color="green" style="stop-color: invalid" />
            <stop offset="1" stop-color="green" style="stop-color: invalid" />
        </linearGradient>
    </defs>
    <rect width="100%" height="100%" fill="url(#gradient)" />
</svg>