a[href]:after for print-styles

Please read my blogpost about this. http://drublic.de/blog/pseudo-classes-in-print-styles-for-references-in-links

by drublic

HTML

<a href="http://drublic.de/blog/pseudo-classes-in-print-styles-for-references-in-links">Pseudo-Classes in Print-Styles for References in Links</a>

CSS

@media print {
  a[href]:after { content: " (" attr(href) ")"; }
}