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
<div name="http://drublic.de/blog/"></div>
<a href="pseudo-classes-in-print-styles-for-references-in-links">Pseudo-Classes in Print-Styles for References in Links</a>
CSS
div[name] { string-set: base attr(name); }
a[href]:after { content: " (" string(base) attr(href) ")"; }