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Checkbox

A checkbox with label, helper text, and consistent focus treatment.
Live example
import { Checkbox } from "@hyzrui/core";
 
export function Example() {
  return <Checkbox defaultChecked label="Email updates" />;
}

Installation

Install the primitive source, then keep editing it inside your app. The command names the component file you want copied.

Command
pnpm dlx hyzrui add checkbox

Usage

Import the component from the generated source folder and compose it with normal React props.

Import
import { Checkbox } from "@hyzrui/core";
Usage
<Checkbox className="my-checkbox" />

Customization

Every primitive accepts local props and class names, then inherits design tokens from HyzrThemeProvider . Copy the file, keep the markup, and tune the CSS until it matches your product.

Radius--hui-radiusControls the default corner system for buttons, inputs, cards, overlays, and nested surfaces.
Foreground--hui-foregroundControls the page and component text colors. Dark mode uses the same component source with different tokens.
Surface--hui-surfaceControls card, dialog, popover, and input surfaces.
Border--hui-borderControls separators, input strokes, card outlines, and menu edges.
Primary--hui-primaryControls the main action color and the matching foreground color for solid controls.
Font--hui-font-familyControls the font stack used by every primitive inside the provider.
Control size--hui-control-font-sizeControls the default font size for buttons, inputs, selects, tabs, command rows, and menu triggers.
Control weight--hui-font-weight-controlControls the default weight of buttons, tabs, menus, badges, and compact actions.
Control height--hui-control-heightControls the default field and trigger height across forms and navigation.
Button height--hui-button-heightControls button height independently from form fields.
Button padding--hui-button-paddingControls horizontal button spacing without changing the text size.
Card padding--hui-card-paddingControls card, dialog, sheet, drawer, and panel interior spacing.
Border width--hui-border-widthControls default edge width for controls, cards, tables, and floating panels.
Focus width--hui-focus-widthControls keyboard focus outline thickness.
Motion duration--hui-transition-durationControls shared hover timing for controls and surfaces.
Hover lift--hui-hover-liftControls subtle hover lift for raised styles.
Overlay--hui-overlayControls dialog, sheet, drawer, and command overlay strength.
Floating offset--hui-floating-offsetControls menu, command, popover, and hover-card distance from the trigger.
Source fileEdit src/lib/hyzrui/components/checkbox.tsx directly once the primitive is installed in your app.
Local classTarget .hui-checkbox for local refinements that should not become global theme tokens.
Theme tokens
import { defineHyzrTheme } from "@hyzrui/core";
 
export const theme = defineHyzrTheme({
  id: "product",
  density: "comfortable",
  radius: 10,
  shadow: 0.08,
  colors: {
    background: "#fbfbfc",
    foreground: "#09090b",
    surface: "#ffffff",
    border: "#e4e4e7",
    primary: "#18181b",
    primaryForeground: "#ffffff",
  },
  typography: {
    controlSize: 14,
    controlWeight: 500,
    headingWeight: 680,
  },
  sizing: {
    controlHeight: 38,
    buttonHeight: 34,
    buttonPadding: 14,
    cardPadding: 18,
  },
  borders: {
    radius: 10,
    radiusSm: 7,
    radiusLg: 16,
    width: 1,
    focusWidth: 2,
  },
  motion: {
    duration: 150,
    hoverLift: 0,
    hoverMix: 5,
  },
});

See the customization guide for the full theme shape, style presets, scoped CSS overrides, and source-edit workflow.

Examples

These examples show the same primitive in realistic combinations and states.

With descriptions

A description below the label gives the user enough context to make an informed choice.

With descriptions
import { Checkbox } from "@hyzrui/core";
 
export function CheckboxWithDescription() {
  return (
    <div style={{ display: "grid", gap: 12 }}>
      <Checkbox
        defaultChecked
        label="Send email notifications"
        description="Receive alerts for deploys, errors, and billing events."
      />
      <Checkbox
        label="Weekly digest"
        description="A summary of activity across your workspace, every Monday."
      />
      <Checkbox
        disabled
        label="SMS notifications"
        description="Requires a verified phone number to enable."
      />
    </div>
  );
}

Permission group

Use a fieldset with a legend to group related checkboxes accessibly.

Permissions
Permission group
import { Checkbox } from "@hyzrui/core";
 
export function CheckboxGroup() {
  const permissions = [
    { id: "read", label: "Read", description: "View resources and their configuration." },
    { id: "write", label: "Write", description: "Create and update resources." },
    { id: "delete", label: "Delete", description: "Permanently remove resources." },
  ];
 
  return (
    <fieldset style={{ border: 0, padding: 0, margin: 0, display: "grid", gap: 12 }}>
      <legend style={{ fontSize: "0.875rem", fontWeight: 600, marginBottom: 4 }}>Permissions</legend>
      {permissions.map(({ id, label, description }) => (
        <Checkbox key={id} label={label} description={description} defaultChecked={id === "read"} />
      ))}
    </fieldset>
  );
}

API Reference

Props are intentionally small. For deeper changes, edit the component source file directly.

PropTypeDefaultDescription
classNamestring-Adds classes to the copied component without replacing the default structure.
childrenReact.ReactNode-The rendered content for compound or wrapper components.
...propsHTMLAttributes-Forwards native element props such as id, aria attributes, and event handlers.
labelstring-Inline label text.
descriptionstring-Secondary helper text.
defaultCheckedbooleanfalseNative checked state.