Layout / The visual dictionary
Header.
An introductory region at the top of a page or section.
Also calledpage headersite header
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UI illustrationSee it in context
ACMEWork · About · Contact
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What it is
An introductory region at the top of a page or section. Place identity, a title, and essential context before the content it introduces.
When to use it
Use it to orient people and surface relevant top-level actions.
Know the difference
A header is a structural region; a navigation bar specifically provides navigation controls.
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Across platforms
WebiOSiPadOSAndroidmacOSWindowsLinux
Web · iOS · iPadOS · Android · macOS · Windows · Linux
Web headers may carry a banner landmark; native screen titles commonly live within a navigation bar.
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Go to the source
Primary documentation for the pattern and its platform conventions.