If you know a bit about the popover API in HTML, you might know it’s basically 1) click a button 2) toggle visibility of another element. Una has a great article explaining that there is a bit more to it. First, there are actually three kinds of popovers. There is the normal kind, which close […]

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The HTML popover API has three types: normal (closes on click away), manual (requires explicit closing), and the new hint type (allows multiple popovers while keeping light dismissal). Beyond click triggers, the experimental interestfor attribute enables hover and focus-based popover activation without JavaScript.

What is popover=hint? – Frontend Masters Blog