Allow "a" element inside text content elements
See https://svgwg.org/svg2-draft/text.html#TextElement - the <a>
element should work inside text:
In CSS terms, the ‘text’ element acts as a block element. The ‘tspan’, ‘textPath’, and ‘a’ elements that are descended from text content elements act as inline elements.
I think it is getting ignored right now; this is probably why SVG_CSS_Test.svg referenced in this comment does not render the "1.0 a:link" line.
File attached: