[1] Add about:unicorn easter egg. · whatwg/fetch@de21fbc (2015-04-01 12:05:13 +09:00 版) https://github.com/whatwg/fetch/commit/de21fbc2e20230a5d82398aecb329dfd979ce5e0

[2] Unicorn (2011-11-24 01:02:42 +09:00 版) http://media.opera.com/media/press/2011/unicorn/

[3] CSS Expressive Generalizations and Gadgetry Level 1 (2015-04-02 12:05:44 +09:00 版) http://dev.w3.org/csswg/css-egg/

[4] Opera 11.60 beta debuts with double-rainbow support - Opera Software (2015-04-02 15:18:27 +09:00 版) http://www.operasoftware.com/press/releases/desktop/opera-11.60-beta-debuts-with-double-rainbow-support

[5] Remove about:unicorn (annevk著, 2016-07-22 22:11:36 +09:00) https://github.com/whatwg/fetch/commit/67e21272425498d26a8e75c3c9b7192099968ffe

[6] 関連: </sarcasm>