Popover
Popover is an overlay positioned relative to the trigger element.
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- When there's an additional functionality related to the target element, but page layout doesn't have an appropriate place to display that functionality.
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- If popover content doesn't have rich formatting or focusable elements, use a tooltip.
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- Use sentence case.
- Don't add a cancel button, popover can be closed via Esc or clicking elsewhere on the page.