drjadler, I think you are on to something. I am noting the same thing with sites I work with or have advised on. I have also noted that the difference in the coding occurs even when IE is in compatibility. I have used a tool call bleachbit to clear ALL of the cache from my computers and there is no change.
My test browsers where Chrome, Safari, Firefox, IE 10, and Opera. All of the browsers where either freshly updated or freshly downloaded. I have sifted through the MSDN page and IE for IT information there is nothing to indicate that it will be fixed anytime soon.
The information provided by WPyodi is a good starting point. Unfortunately, many web admins to have the time to fool with browser settings. We trust the templates we are using are up to w3 css code and are structurally sound for all browsers.
