What is the purpose of writing valid, accessible HTML?
Some “surf the web” with text-based browsers. Why? Because they are faster, since they don’t have to worry about pictures, layout, colors, and fonts, and because many of them use an operating system that allows them to boot their computers into the command line, without using a GUI (“goo-ey”), a graphical user interface (such as a desktop), or allows them to choose their mode at startup. Writing code that conforms to a standard (preferably the strictest and latest) helps to deal with most cross-browser issues. During the fierce “browser wars” in the 1990’s between Netscape and Microsoft’s Internet Explorer, both companies introduced tags that were proprietary (private property, meaning the other browser couldn’t use them). They also handled the standard tags and attributes inconsistently. This caused website designers to target their websites specifically at users of one browser or the other, or even to build seperate websites for each. Nonstandard code also causes horrible problems fo