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Navigation items (navigation pane, upper navigation, navigation menu)
Tab headings
Window headers
Buttons
Ribbon section headers
Statistics names
Examples:
Navigation Itemsitems  |
Window header, ; tab headings  Ribbon section header  |
Buttons |
Statistics  |
Do capitalize
The first letter of nouns, adjectives, verbs, adverbs, and pronouns
The first and last words of the text element
The second word of a hyphenated compound unless it is an article or preposition (for example: Quick-Search Options and Add-on Choices).
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