<p>Style your main heading, called the Level 1 heading, in text that is centered, bold and capitalized in title case. Title case capitalization means using uppercase letters to begin all major words -- including nouns, verbs, adjectives, pronouns and adverbs -- as well as any conjunctions or prepositions that are four letters or more. All headings other than Level 1 are considered subtitles, or subheadings.</p>
<p>Type your second-level heading flush with the left margin, bold and capitalized in title case.</p>
<p>Compose your third-level heading by indenting one-half inch and typing the heading in bold. Capitalize only the first word and any proper nouns within a third-level heading, and place a period at the end of the heading.</p>
<p>Construct your fourth-level heading by indenting one-half inch and typing the heading in bold italics. Capitalize as you do a third-level heading and place a period at the end.</p>
<p>Generate a Level 5 heading the same way you style a Level 4 heading, removing the boldface.</p>