When rendering HTML with styleType: 'css', one text block cannot be both underline and strikethrough

[kbjr]

Underlines and strikethroughs are both handled by text-decoration in css, which means one node cannot have both. This could be fixed by wrapping it in a second element, like this:

<span style="text-decoration: underline">
  <span style="text-decoration: line-through">
    content
  </span>
</span>

[kbjr]

This can now (theoretically) be fixed as the text-decoration property can now take multiple values:

element {
    text-decoration-line: underline line-through;
}