Should Css "orphan" Operate At Line Or Block Level?

I'm rendering HTML documents to PDF. Previously I was using Wkhtmltopdf, but it looks like Dompdf offers better support for page breaks, so I expect I will switch to that. I'd like

Solution 1:

As mentioned by liZe on the WeasyPrint issue tracker:

Orphans / Widows only work for line-boxes, not for block-like boxes.

Fortunately, you can define rules like:

li:last-child {
  break-before: avoid;
}
li:first-child {
  break-after: avoid;
}