4 <p>The test passes if you see a green square.
</p>
5 <svg xmlns=
"http://www.w3.org/2000/svg" version=
"1.1" width=
"200px" height=
"200px">
8 <rect x=
"0" y=
"0" width=
"100" height=
"100" fill=
"white" />
11 <g id=
"isolator" mask=
"url(#Mask)">
12 <rect x=
"0" y=
"0" width=
"200" height=
"200" style=
"fill: green;"/>