3 SVG methods

inline

SVG fallback

<svg viewBox="0 0 512 512">
	<!-- SVG code -->
	<image src="vis.png" xlink:href="" />
</svg>

symbol definition

SVG fallback

<svg viewBox="0 0 512 512">
	<!-- SVG code -->
	<image src="vis.png" xlink:href="" />
</svg>

image tag

at symbol

image trick for fallback

<svg width="512" height="512">
	<image xlink:href="vis.svg" src="vis.png" width="512" height="512" />
</svg>