Disclaimer noted, but as to your lisp/HTML example, HTML and lisps actually have a lot in common - if you strip away the end tags and the angle brackets, you get something very lispy looking

    <div>
      <span>Hello</span>
    </div>

has the same (prefix) order of operators and operands as

    (div
      (span "Hello"))

Off the top of my head, the "hiccup" package for Clojure has an 'html' function (macro?) that translates just that sort of stuff directly into html