“Ctrl+/”
“F11/ESC”
<!DOCTYPE html>
<html>
<body>
<svg xmlns="https://www.w3.org/2000/svg" version="1.1" height="190">
<polygon points="100,10 40,180 190,60 10,60 160,180"
style="fill:lime;stroke:purple;stroke-width:5;fill-rule:evenodd;">
</svg>
</body>
</html>