This is the Normal style for text. Some of the heading styles look the same. I have been using mostly Heading 3 for big headlines; Heading 4 for subheads; and normal for text. All of this text in this ...

Type a few paragraphs (or use the =Rand command to create some random text). Enter a header over the first two paragraphs, then select it, and choose Heading1 from the Styles group under the Home tab.

HTML Tags are examples of structural styles, for example h1, h2, p. These tags should be applied to the first level of headings, secondary heading, and paragraphs respectively.