[1] Lynx Users Guide v2.7.1 http://leb.net/blinux/blynx/Lynx_users_guide.html#24
[4] w3/w3-parse.el at master · emacsmirror/w3 · GitHub, https://github.com/emacsmirror/w3/blob/master/w3-parse.el#L1177
[2] Elements from HTML3.0 (Was: XSLT: HTML 5 --> HTML) (Ian Hickson <ian@...> 著, 版) http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/12592
I think we should wait to see what happens with CSS3 and maybe address this in markup in HTML 5.1 or 6.
[6] null, , http://web.archive.org/web/20010210023423fw_/http://developer.webtv.net/authoring/html/fn.html#1016898