This is a simple couple of lines that can help your users see the URL of a link when printing our web page.
a[href]:after {
content: " (" attr(href) ")";
}
a[href^="#"]:after,
a[href^="javascript"]:after {
content: "";
}
content: " (" attr(href) ")";
}
a[href^="#"]:after,
a[href^="javascript"]:after {
content: "";
}