You're wasting characters, /> is only a requirement of XHTML. You can just use <br> and it is valid. Also, are HTML comments are allowed before the DOCTYPE tec

You're wasting characters, /> is only a requirement of XHTML. You can just use <br> and it is valid. Also, are HTML comments are allowed before the DOCTYPE technically? (this is the kind of tomfoolery that escapes unit testing on browsers)