Hover card

A preview card that appears on hover or focus.

Left out of Multi-brand Hover cards need a mouse, and touch screens have no hover. Multi-brand's customers use any device. A popover opens plan details by tap. Use instead: Popover

See it live

Start Storybook to see it live: npm run storybook

Live from StorybookOpen Hover card in StorybookSee it in dark

When to use it

• Use it when: A quick look at a person or link for people with a mouse, with the same detail reachable on click.
• Not when: The only way to see the content: touch screens have no hover.

Instead:

• Popover: Opens on click, works on touch.
• Tooltip: A one-line hint.

Words

• Shared structure: object, state, next step.
• Brand tone lives in headlines and marketing copy, not in errors.
• Errors and confirmations read the same in every brand.
• Use: Get started, Plan, Order. Avoid: Brand-specific words in errors, Jargon.

The labels components use, from the voice tokens:

• content.action.commit: Save
• content.action.cancel: Cancel
• content.action.destroy: Remove
• content.action.retry: Try again
• content.action.empty-action: Get started

See Voice and tone for the whole voice.

Use it in code

npx open-ds add hover-card

The component reads only component keys and semantic tokens, so it follows the brand and mode on <html>.

Tokens it reads

Hover card reads 6 tokens of its own, each an alias of a semantic token. Each row is one part: its own token, the semantic it aliases, and the value it ends at. Change a semantic and every component that reads it follows; override one of Hover card's tokens to change Hover card alone.

Changes with theme

Multi-brand decides what changes when you switch theme. Here a switch changes colors, type and shape, so the marked rows differ between its brands and between light and dark; everything else holds steady.

Part	Its token and the semantic it aliases	Value
Shared
Transition panels duration	component.transition.panels-durationmotion.duration.panelsvar(--transition-panels-duration)	duration.relaxed:320ms
Content
Corner Changes with theme	component.hover-card.content.radiusradius.controlvar(--hover-card-content-radius)	Aster Lightradius.4:0.25remAster Darkradius.4:0.25remBirch Lightradius.12:0.75remBirch Darkradius.12:0.75remCoral Lightradius.999:9999pxCoral Darkradius.999:9999px
Fill Changes with theme	component.hover-card.content.backgroundcolor.surface.raisedvar(--hover-card-content-background)	Aster Lightslate-deep.light.0:#FFFFFFAster Darkslate-deep.dark.100:#1E293BBirch Lightslate-deep.light.0:#FFFFFFBirch Darkslate-deep.dark.100:#1E293BCoral Lightslate-deep.light.0:#FFFFFFCoral Darkslate-deep.dark.100:#1E293B
Padding	component.hover-card.content.paddingspace.inset.containervar(--hover-card-content-padding)	space.24:1.5rem
Text Changes with theme	component.hover-card.content.labelcolor.text.primaryvar(--hover-card-content-label)	Aster Lightslate-deep.light.900:#0F172AAster Darkslate-deep.dark.900:#F8FAFCBirch Lightslate-deep.light.900:#0F172ABirch Darkslate-deep.dark.900:#F8FAFCCoral Lightslate-deep.light.900:#0F172ACoral Darkslate-deep.dark.900:#F8FAFC
Shadow Changes with theme	component.hover-card.content.shadowelevation.overlayvar(--hover-card-content-shadow)	Aster Lightshadow.overlayAster Darkshadow.overlay-darkBirch Lightshadow.overlayBirch Darkshadow.overlay-darkCoral Lightshadow.overlayCoral Darkshadow.overlay-dark
From the system
Edge Changes with theme	color.border.default straight from the system, through --border	Aster Lightslate-deep.light.200 · #E2E8F0Aster Darkslate-deep.dark.100 · #1E293BBirch Lightslate-deep.light.200 · #E2E8F0Birch Darkslate-deep.dark.100 · #1E293BCoral Lightslate-deep.light.200 · #E2E8F0Coral Darkslate-deep.dark.100 · #1E293B