Does validated HTML code guarantee that a page will display correctly?
Unfortunately, no. Browser manufacturers don’t always code for valid HTML – especially in pre-release or beta versions of browser. All “final” versions of browsers should display a valid HTML page without any problems. A good example is Internet Explorer – this browser can have bugs that get fixed, which re-appear in a later version. Example: Internet Explorer 5.5 SP1 fixed many CSS problems, plus fixed a LOT of SSL problem (Secure Socket Layer – for e-commerce & secure transactions). The big problem came when IE 5.5 SP2 came out – almost all of the bugs fixed by the SP1 patch were wiped out! Fortunately, Internet Explorer 6.0 came out only a few short months later – the CSS bugs were largely fixed – but the SSL bugs remain to this day, something which web servers must accommodate and fix on the server side for all IE 6.0 equipped visitors!
