“Ctrl+/”
“F11/ESC”
<!DOCTYPE html>
<html>
<body>
<svg xmlns="https://www.w3.org/2000/svg" version="1.1">
<rect width="300" height="100" style="fill:rgb(0,0,255);stroke-width:1;stroke:rgb(0,0,0)" />
</svg>
</body>
</html>