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NCI Design System Site Alert

Documents site alerts for urgent sitewide information, standard and slim variants, emergency and info modifiers, optional close and expand behavior, top-of-page placement, and combining multiple messages into one alert.

Read with a purpose

What this source can teach

Use this source to compare a documented solution with the task and states in your own product.

  1. Start with the original. Open the source and find the guidance or example relevant to your task.
  2. Trace the connection. Use the claim notes below to see how this site applies the source to specific patterns.
  3. Check the setting. Compare the source's platform, people, and constraints with your own decision.

Pattern Decisions This Source Supports

Pattern Supported decision Required contract Claim note
Site alert Choose site alert when urgent sitewide information must appear by default on every affected page near the top of the site. The site alert appears before ordinary page content and is reachable from any affected route, not just the home page. NCI documents site-alert standard, slim, emergency, info, close, and expand variants plus top-of-page placement and combining related messages.

Evidence Role

This source is treated as pattern-library evidence. Its value comes from the specific claims and setting described above.

Publisher: National Cancer Institute Design System. Last checked: .

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