This page is designed to tell commercial web developers why they should develop StandardsCompliant web pages.

Why should I make my web site compliant?

Because the IT department of your biggest clients are changing away from InternetExplorer in droves. Windows users tend towards MozillaFirefox or Opera, Mac users may be using MozillaCamino or Safari. Linux users have probably been using Mozilla forever.

Do's and don'ts

• Don't use document.all
• Don't use MSXMLDOC
• Don't test your CSS padding/margin/box model in IE
• Do try it against http://validator.w3.org/
• Don't put stuff in a table without <td> tags around it (IE displays it, Moz doesn't)

There's a great guide on the specifics at http://nexgenmedia.net/evang/iemozguide/.

Should I support Netscape any more?

If you support Mozilla, you're supporting Netscape 7 and up. These days it's realistic to drop support for any version of Netscape 4 or below.