https://c.runoob.com/more/svgeditor/
<svg width="20" height="20" xmlns="http://www.w3.org/2000/svg">//缩小画板
<!-- Created with Method Draw - http://github.com/duopixel/Method-Draw/ -->
<g>
<title>background</title>
<rect x="-1" y="-1" width="22" height="22" id="canvas_background" fill="#fff"/>//缩小画板
<g id="canvasGrid" display="none">
<rect id="svg_1" width="100%" height="100%" x="0" y="0" stroke-width="0" fill="url(#gridpattern)"/>
</g>
</g>
<g>
<title>Layer 1</title>
</g>
</svg>
