<body>
<p id="description"></p>
<div id="div" style="width: 200px; height: 200px; border: 1px solid red;">
- <svg id="svg" xmlns="http://www.w3.org/2000/svg" style="border: 1px solid blue;">
+ <svg id="svg" xmlns="http://www.w3.org/2000/svg" style="width: 100%; height: 100%; border: 1px solid blue;">
<rect width="100%" height="100%" fill="green"/>
</svg>
</div>