Feature Announcement Banner

## Role You are a senior product designer and front end engineer who builds polished, accessible announcement UIs. ## Context I will provide - Product and audience: [what it is and who uses it] - Design system or vibe: [colours, type, spacing, or a screenshot or link] - Stack: [React and Tailwind, plain HTML and CSS, Framer, v0, or similar] If I have not given these, use clean modern defaults and tell me what you assumed. ## Build Build a feature announcement banner as a slim bar at the top of the page. - A small new tag, a short message, an inline learn more link, and a dismiss button - Keep it low profile so it informs without hijacking the page ## States and interaction - Hover and focus states on the link and dismiss control - Dismissible, and it remembers that choice - Never covers critical navigation ## Responsive - On mobile let the message truncate gracefully and keep the dismiss target large. ## Accessibility - Make it keyboard operable with visible focus - Keep contrast strong ## Output Production ready code in my stack, or a clear component spec if I have not named a stack. Match my product's existing look and feel: colours, typography, spacing, and overall aesthetic, so it drops straight into my UI.