Each browser ought to render your informational Web pages without problems. Modify pages until they validate, because compliant pages have a better chance of being rendered by various Web browsers, as the writer intends. However, if you intend something that is impractical with HTML, it will be no less impractical for being syntactically valid. Specifications for HTML WDG HTML Validator W3C HTML Validation Service Condense textual content to fit the time and attention constraints of today's busy Web users. It's of the first importance to make the right choice between JPEG and a palette-based format.
Some people never turn images on.
Use of ALT Texts In IMGs Test . Every visitor will see your pages differently. Test your pages with as many browsers and platforms as you can. Note that search engines are, in effect, text-only browsers. Make documents Lynx-friendly.