It seems CSS behaves differently with and without the
DOCTYPE comment. The HTML for my blog looks like
<!DOCTYPE html> <html lang=""> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> ... </head> ... </html>
And the page renders fine.
However, if I remove the
!DOCTYPE comment from the header, something odd happens: the social network icons at the bottom of my page float up a little bit.
I really don't know what is happening.