In HTML 4 strict, <br/ is an alias for <br> ... which means <br/> is a problem. It's all caused by HTML using (and abusing) SGML. http://jkorpela.fi/html/empty.html #webdev
This is the Mastodon server used by @h2g2bob. Most posts are public, take a look around.
Why not take a look at dbatley.com for other interesting stuff.