Creating Headings, Paragraphs, and Callouts
Use the Markup Styles ribbon button to create headings, paragraphs or callout. As the name indicates, the markup styles options affect the structure of your HTML and the styles applied to a given selection. In some cases you can achieve the same visual affect by formatting the font or applying predefined styles from the Style dropdown, but some layouts are best achieved using markup styles. For example, many search engines give greater weight to the contents of headings than they do to paragraphs that simply have big text.
This is a Heading 1
This is a Callout 3
This is a Colored Heading 4