Sans serif fonts are best suited for titles, headers, and labels because they are easily recognized and understood. Serif fonts are more suited for body text because they are easier to read for extended time periods. However, either serif or sans serif font can be used for body text. In general, use no more than two different typefaces. Adding emphasis to text in a document will provide landmarks to direct the reader through Web content.
Italicized text attracts the eye because it contrasts in shape from body text.
Boldface text gives emphasis because it contrasts in thickness from body text. However, large blocks of text set in bold lack contrast and lose their effectiveness. Underlined and colored text is not desirable on Web pages because it can be confused with a hyperlink. Capitalized text is one of the most common and least effective methods for adding typographical emphasis. One of the most effective ways to create visual contrast is to add space before and after the header or title to differentiate it from a text block.