Fieldset

A native fieldset element with an easily stylable legend.

Billing details

Company

Tax ID

import { Field } from '@base-ui/react/field';
import { Fieldset } from '@base-ui/react/fieldset';
import styles from './index.module.css';

export default function ExampleField() {
  return (
    <Fieldset.Root className={styles.Fieldset}>
      <Fieldset.Legend className={styles.Legend}>Billing details</Fieldset.Legend>

      <Field.Root className={styles.Field}>
        <Field.Label className={styles.Label}>Company</Field.Label>
        <Field.Control placeholder="Enter company name" className={styles.Input} />
      </Field.Root>

      <Field.Root className={styles.Field}>
        <Field.Label className={styles.Label}>Tax ID</Field.Label>
        <Field.Control placeholder="Enter fiscal number" className={styles.Input} />
      </Field.Root>
    </Fieldset.Root>
  );
}

Anatomy

Import the component and assemble its parts:

Anatomy

import { Fieldset } from '@base-ui/react/fieldset';

<Fieldset.Root>
  <Fieldset.Legend />
</Fieldset.Root>

API reference

Root

Groups a shared legend with related controls. Renders a <fieldset> element.

classNamestring | function—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: Fieldset.Root.State) => string | undefined) | undefined

styleReact.CSSProperties | function—

Name: style
Description: Style applied to the element, or a function that returns a style object based on the component’s state.
Type: | React.CSSProperties | (( state: Fieldset.Root.State, ) => React.CSSProperties | undefined) | undefined

renderReactElement | function—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | (( props: HTMLProps, state: Fieldset.Root.State, ) => ReactElement) | undefined

Fieldset.Root.PropsHide

Re-Export of Root props as FieldsetRootProps

Fieldset.Root.StateHide

type FieldsetRootState = {
  /** Whether the component should ignore user interaction. */
  disabled: boolean;
}

Legend

An accessible label that is automatically associated with the fieldset. Renders a <div> element.

classNamestring | function—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: Fieldset.Legend.State) => string | undefined) | undefined

styleReact.CSSProperties | function—

Name: style
Description: Style applied to the element, or a function that returns a style object based on the component’s state.
Type: | React.CSSProperties | (( state: Fieldset.Legend.State, ) => React.CSSProperties | undefined) | undefined

renderReactElement | function—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | (( props: HTMLProps, state: Fieldset.Legend.State, ) => ReactElement) | undefined

Fieldset.Legend.PropsHide

Re-Export of Legend props as FieldsetLegendProps

Fieldset.Legend.StateHide

type FieldsetLegendState = {
  /** Whether the component should ignore user interaction. */
  disabled: boolean;
}