John Berryman wrote:
It is odd (to me any way) that certain browsers won't open or show all content on all web pages but another browser will.
It's because very few people check their HTML pages with a validator to make sure they follow the W3C standards. When a browser finds non-standard or broken HTML, there's nothing to define how it should act. The result is a page that works fine in whatever browser the person designing it checked it with, but misbehaves in others.
Validating your own pages is easy; there's an online tool for it here: http://validator.w3.org/
