1 <html xmlns=
"http://www.w3.org/1999/xhtml">
6 var SVG_NS
= "http://www.w3.org/2000/svg";
10 var svgElem
= document
.createElementNS(SVG_NS
, "svg");
11 var ellipse
= document
.createElementNS(SVG_NS
, "ellipse");
13 svgElem
.setAttribute("viewBox", "0 0 30 40");
14 document
.body
.appendChild(svgElem
);
15 document
.body
.appendChild(ellipse
);
16 ellipse
.appendChild(svgElem
);
17 svgElem
.removeAttribute("viewBox");
23 <body onload=
"boom()">