All the pages related to Google have their Html5 docs uglified, to make them hard to copy (I think so). The problem with most tools online, is that they only receive the Html5, and, after the process, the javascript and css don't work anymore.
Google published their Javascript compiler, Google Closure, but it only receives javascript, again breaking the document as a whole.
What tool does Google use to minify/uglify their Html5 web pages? What other tools could I use?