How to comment/uncomment in HTML code

Question

Often while coding view templates in html, my habit of adding some helpful comments causes lots of time-consuming effort while testing.

Consider this code...

Answer 1

I find this to be the bane of XML style document commenting too. There are XML editors like eclipse that can perform block commenting. Basically automatically add extra per line and remove them. May be they made it purposefully hard to comment that style of document it was supposed to be self explanatory with the tags after all.