<!DOCTYPE HTML>
<svg width="200px" height="200px">
<image x="0" y="0" width="100" height="100" xlink:href="data:image/gif;base64,R0lGODdhAgACAIABAAAAAP///ywAAAAAAgACAAACA0QCBQA7"></image>
<image x="100" y="0" width="100" height="100" xlink:href="data:image/gif;base64,R0lGODdhAgACAIABAAAAAP///ywAAAAAAgACAAACA0QCBQA7"></image>
<image x="0" y="100" width="100" height="100" xlink:href="data:image/gif;base64,R0lGODdhAgACAIABAAAAAP///ywAAAAAAgACAAACA0QCBQA7"></image>
<image x="100" y="100" width="100" height="100" xlink:href="data:image/gif;base64,R0lGODdhAgACAIABAAAAAP///ywAAAAAAgACAAACA0QCBQA7"></image>
</svg>