* 歴史

[1] [CITE@en[Fix #559: require focus movement on scrolling to a fragment ID · whatwg/html@414bee7]] ([TIME[2016-02-25 11:39:23 +09:00]] 版) <https://github.com/whatwg/html/commit/414bee7380eef0aa4487c44e2008eef6dcfb9ee4>