“Ctrl+/”
“F11/ESC”
<!DOCTYPE html>
<html>
<body>
<svg xmlns="https://www.w3.org/2000/svg" version="1.1">
<ellipse cx="300" cy="80" rx="100" ry="50" style="fill:yellow;stroke:purple;stroke-width:2" />
</svg>
</body>
</html>