file size? It's not much, but it would still strip some stuff.
I'm still bitter that HTML/XML works based off of explicit closing tags (where you can mistakenly close the wrong tag) instead of something like braces.
Use a build tool (which you should be doing anyway if you hand-write any markup, because you need to validate it) and make it rewrite </> to the relevant closing tag, if necessary... problem solved? (and yes, you'd be free to even leave </> off in many, many places: https://www.w3.org/TR/html5/syntax.html#optional-tags).
Alternatively, don't use HTML at all. Use pug (formerly "jade") or something and now you're free from all those inconvenient angle brackets.
Alternatively, don't use HTML at all. Use pug (formerly "jade") or something and now you're free from all those inconvenient angle brackets.