h5bp/html5-boilerplate — pull request #1567 by EvgenyOrekhov (2014-07-27 17:29:12+00:00)
Title: 404.html: better content vertical alignment

Content vertical alignment using `display: table` for `` and `display: table-cell` for `

`.
That way one can modify the content and don't worry about readjusting the margin.