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Tooltip

Lightweight, hover-triggered informational hint overlays.

Interactive Playground

R Code

API Reference

block_tooltip()

Lightweight hover informational hint boxes rendered cleanly in the body portal to avoid layout clipping.

ArgumentTypeDefaultDescription
triggercharacter | shiny.tagrequiredLabel or UI element that triggers tooltip on hover/focus.
...shiny.tag | tagListrequiredTooltip inner text or tag elements.
side'top' | 'bottom' | 'left' | 'right''top'Tooltip placement side relative to trigger.
align'center' | 'start' | 'end''center'Placement alignment along the chosen side.
delay_durationinteger700Time in milliseconds to wait before showing tooltip on hover.
content_stylecharacterNULLInline CSS overrides on tooltip popover.
content_classcharacterNULLAdditional custom styling classes.