<!DOCTYPE HTML>
<!-- Test the default behaviour of isolation with two simple elements. The test passes if the small square is drawn with black (blending is performed since the element is not isolated). -->
<svg xmlns="http://www.w3.org/2000/svg" width="400px" height="400px" style="background: green">
    <g style="isolation: auto">
        <rect x="100" y="100" width="200" height="200" style="fill: blue; mix-blend-mode: multiply"/>
    </g>
</svg>