OverlaysGlass surface
HoverCard
Shows extra context on hover and focus.
01
See it and copy it
Framework example
Choose Astro, React, or Elements to compare native usage against the shared visual output. Each example assumes the framework-level setup is already complete.
View HoverCard code
Framework usage
Switch targets to compare the adapter code. This live preview runs the Astro example. React and Elements use their own behavior APIs; complete the matching framework setup before copying an example.---
import {
Button,
HoverCard
} from '@santi020k/lumen-astro'
---
<HoverCard>
<Button variant="outline" data-ui-trigger>Preview maintainer</Button>
<div>
<strong>Santiago Molina</strong>
<p>Maintainer of Lumen UI.</p>
</div>
</HoverCard>import {
Button,
HoverCard
} from '@santi020k/lumen-react'
export const Example = () => (
<>
<HoverCard>
<Button variant="outline" data-ui-trigger>Preview maintainer</Button>
<div>
<strong>Santiago Molina</strong>
<p>Maintainer of Lumen UI.</p>
</div>
</HoverCard>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<lumen-hover-card>
<lumen-button variant="outline" data-ui-trigger>Preview maintainer</lumen-button>
<div>
<strong>Santiago Molina</strong>
<p>Maintainer of Lumen UI.</p>
</div>
</lumen-hover-card>02
Choose your target
Add this component
Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.
pnpm add @santi020k/lumen-astropnpm add @santi020k/lumen-astrolumen add HoverCardlumen add HoverCardpnpm add @santi020k/lumen-reactpnpm add @santi020k/lumen-reactlumen add HoverCard --target reactlumen add HoverCard --target reactpnpm add @santi020k/lumen-elementspnpm add @santi020k/lumen-elementslumen add HoverCard --target elementslumen add HoverCard --target elementsGlass
Add the glass prop to apply the shared blur, saturation, border, and highlight tokens. Glass reads best over vivid content, so place the surface above imagery or color.
View HoverCard code
Framework usage
Switch targets to compare the adapter code. This live preview runs the Astro example. React and Elements use their own behavior APIs; complete the matching framework setup before copying an example.---
import { HoverCard } from '@santi020k/lumen-astro'
---
<div class="docs-glass-demo docs-glass-demo--float">
<HoverCard glass>
<a href="/docs" data-ui-trigger>@santi020k</a>
<div>
<strong>Santiago Molina</strong>
<p>The glass hover card floats as a frosted lens over the artwork behind it.</p>
</div>
</HoverCard>
</div>import { HoverCard } from '@santi020k/lumen-react'
export const Example = () => (
<>
<div className="docs-glass-demo docs-glass-demo--float">
<HoverCard glass>
<a href="/docs" data-ui-trigger>@santi020k</a>
<div>
<strong>Santiago Molina</strong>
<p>The glass hover card floats as a frosted lens over the artwork behind it.</p>
</div>
</HoverCard>
</div>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<div class="docs-glass-demo docs-glass-demo--float">
<lumen-hover-card glass>
<a href="/docs" data-ui-trigger>@santi020k</a>
<div>
<strong>Santiago Molina</strong>
<p>The glass hover card floats as a frosted lens over the artwork behind it.</p>
</div>
</lumen-hover-card>
</div>API reference
Lumen-specific props and runtime attributes for the Astro primitive. Use the framework differences above and the copyable examples for React composition and Elements attributes; the public adapter types define their supported contracts.
| Attribute | Values | Default | Description |
|---|---|---|---|
| glass | boolean | "subtle" | "strong" | false | Applies the tokenized liquid-glass surface treatment with backdrop-filter fallbacks; "subtle" and "strong" adjust the fill intensity. |
| data-ui-trigger | boolean attribute | - | Marks the child trigger that opens and closes the adjacent disclosure panel. |
| class, className | string | "" | Merges custom classes with the generated ui-* root classes. |
| ...native attributes | HTML attributes | - | Forwards standard attributes to the root element unless the component consumes them. |