SvgDefsElement Class
https://w3c.github.io/svgwg/svg2-draft/struct.html#svgdefselement
public sealed class SvgDefsElement : SvgGraphicsElement- Inheritance
SvgGraphicsElementSvgDefsElement
https://w3c.github.io/svgwg/svg2-draft/struct.html#svgdefselement
public sealed class SvgDefsElement : SvgGraphicsElementSvgGraphicsElement SvgDefsElement