Ctrl+A (or another selection), context menu, View Selection Source.
For IE (7), document.documentElement.outerHTML comes closest.
;, Inspect Mode. For IE, try the Internet Explorer
Anyone who slaps a 'this page is best viewed with Browser X' label on
a Web page appears to be yearning for the bad old days, before the Web,
when you had very little chance of reading a document written on another
computer, another word processor, or another network. -- Tim Berners-Lee