Default styling needed for <!--nextpage--> .page-links single post pagination

[newtlabs]

when <!--nextpage--> is used in a post to separate a long post onto multiple pages there is no default styling for the page links, I think this should have some default styling the same/similar as the archive pagination as people can easily forget about this/not realise it isn't styled as it is only showing up on few posts where used.

Screenshots show examples of default single post page link styling vs having some default styling added and the pagination styling for reference: