Without meaningful text, graphics are useless to users who can not view images, or who surf with images turned off. A common problem is tables with set widths that are too large for smaller monitors, forcing viewers to frequently scroll sideways. Another is left menu graphics that display poorly on different machines against a left-hand background. The proper use of forms invites the user to fill out the fields or click the buttons. Designers frequently use a form with text fields that are too small or that won't wrap your entry.
Frames are an excellent method for providing clear navigation of a site.
This tag at the beginning of the file is essential. It is required to adhere to proper Web syntax, and tells the browser what type of Web page follows. A great majority of Web pages omit this. Also beware of using unusual fonts. This issue is deprecated with the use of style sheets.