> For the complete documentation index, see [llms.txt](https://docs.realmacsoftware.com/elements-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.realmacsoftware.com/elements-docs/using-elements/components/form/radio.md). # Radio Radio creates a set of mutually exclusive choices. Selecting one option automatically clears the other option in the same group. ### How to Use Radio You’ll find Radio under **Forms** in the Components list. 1. Place Radio inside a [Form](/elements-docs/using-elements/components/form.md). 2. Enter a shared Name for the group. 3. Add items to the Options collection. 4. Give every option a visible Label and submitted Value. 5. Enable Required when the visitor must make a choice. 6. Style checked, unchecked, label, and focus states. ### Component Settings #### Settings **Required** is off by default. **Name** is blank by default. Every option uses this Name so the browser treats them as one group. **Alignment** arranges options Horizontally or Vertically and defaults to Vertical. #### Radio Use **State** to edit Unchecked and Checked appearance. It defaults to Unchecked. * **Unchecked** — Border Surface 900; Background Surface 50. * **Checked** — Border Brand 500; Background Brand 500. Border Width and Border Radius use Theme Studio controls. #### Options The **Options** collection adds, removes, and reorders choices. Each item contains: * **Label** — Text shown to the visitor. Blank by default. * **Value** — Value included in the submission. Blank by default. #### Label Label colours default to Surface 50 when Unchecked and Brand 500 when Checked. **Font** defaults to Body and **Size** to Base. #### Outline **Type** defaults to None and can be Static or Focus. Focus provides Unfocused and Focused states. Outline defaults are Solid style, Surface 500 colour, 100% opacity, width 1, and offset 0. #### Sizing and Spacing Radio **Size** defaults to theme spacing 4. Option **Gap** defaults to theme spacing 4. ### Accessibility Use a clear question or group description before the options and concise labels for each choice. Keep a visible keyboard-focus outline. ### Related Components * [Checkbox](/elements-docs/using-elements/components/form/checkbox.md) — Allows several independent choices. * [Select](/elements-docs/using-elements/components/form/select.md) — Presents one choice in a compact drop-down. * [Form](/elements-docs/using-elements/components/form.md) — Configures delivery and validation. | Common Control | Description | | ------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------- | | [Link](/elements-docs/using-elements/components/common-controls/link.md) | Link to a page, resource, anchor, email address, or website. | | [Layout](/elements-docs/using-elements/components/common-controls/layout.md) | Control positioning, stacking, visibility, overflow, and isolation. | | [Sizing](/elements-docs/using-elements/components/common-controls/sizing.md) | Set width, height, and responsive size constraints. | | [Spacing](/elements-docs/using-elements/components/common-controls/spacing.md) | Add responsive margin and padding. | | [Typography & Text Styles](/elements-docs/using-elements/components/common-controls/typography-and-text-styles.md) | Control fonts, text spacing, decoration, colour, and semantic wrappers. | | [Backgrounds](/elements-docs/using-elements/components/common-controls/backgrounds.md) | Apply colour, image, gradient, SVG, video, and hover backgrounds. | | [Transitions](/elements-docs/using-elements/components/common-controls/transitions.md) | Choose what animates and set its timing curve, duration, and delay. | | [Effects](/elements-docs/using-elements/components/common-controls/effects.md) | Apply shadows, opacity, and hover effects. | | [Filters](/elements-docs/using-elements/components/common-controls/filters.md) | Apply blur, brightness, saturation, shadow, and backdrop effects. | | [Transforms](/elements-docs/using-elements/components/common-controls/transforms.md) | Scale, rotate, move, and skew components. | | [Borders](/elements-docs/using-elements/components/common-controls/borders.md) | Set border style, colour, opacity, width, radius, and hover states. | | [Advanced](/elements-docs/using-elements/components/common-controls/advanced.md) | Add CSS classes and IDs, or change supported HTML tags. | --- # Agent Instructions This documentation is published with GitBook. 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