I pulled these from my personal experience, from newsgroups, and from E-mail. Easy navigation Be useful and informative Use Browser safe techniques. Many pages use fixed pixel widths for tables and frames. This can really annoy a visitor with a smaller window or screen resolution. This is one that has become a bit controversial.
Many layouts look good when centered.
Try to avoid lists being centered, because they don't look good, but many pages look great centered. This makes the headlines sans serif and the text stays the default, usually Times Roman. This a nice look. Also do not use tags that can be interpreted wrong. Up Browser safe colors There are only 216 colors that will display correctly in all browsers and platforms.