Checkbox
Checkbox built on the native checkbox input.
- Browsers
- Chrome 123+, Firefox 121+, Safari 17.5+
- Tier
- 0
- Bundle compressed
- 448 B
- Forced layout budget
- 0 ms
- Axe budget
- 0
- SSR compatible
- Yes
- Published contract
- Test harness
Playground
Checkbox
Default
Indeterminate
Disabled
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import { Checkbox } from "@gunkin/uiify";
export default function Example() {
return <Checkbox className="" id="terms" label="Accept terms" />;
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/* Checkbox, Radio, Switch — all native <input>s styled with appearance:none.
State comes from :checked / :indeterminate (works uncontrolled) and the
[data-state] / [data-disabled] attributes (set when controlled). Thumbs and
checkmarks are pseudo-elements on the input itself. */
@layer components {
:where([data-uiify-checkbox] > input, [data-uiify-radio]) {
appearance: none;
inline-size: 1.25rem;
block-size: 1.25rem;
margin: 0;
border: var(--border-width) solid var(--input);
background-color: var(--card);
display: inline-grid;
place-content: center;
cursor: pointer;
transition: var(--transition-colors);
}
[data-uiify-checkbox] {
--uiify-checkbox-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.6 8.6l3 3L12.4 4.8' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
center / 100% 100% no-repeat;
display: inline-flex;
align-items: center;
gap: var(--space-sm);
cursor: pointer;
user-select: none;
color: var(--foreground);
font-size: var(--text-sm);
line-height: var(--leading-normal);
}
[data-uiify-checkbox] > input {
border-radius: var(--radius-xs);
corner-shape: squircle;
}
[data-uiify-radio] {
border-radius: var(--radius-full);
}
/* Checked fill (covers controlled [data-state] and uncontrolled :checked). */
[data-uiify-checkbox] > input:checked,
[data-uiify-checkbox] > input[data-state="checked"] {
border-color: var(--primary);
background-color: var(--primary);
}
/* Radio checked state is a thick accent ring around a white center, not a
filled dot — matches the 2a/2b handoff's target/bullseye radio anatomy. */
[data-uiify-radio]:checked,
[data-uiify-radio][data-state="checked"] {
border-width: 5px;
border-color: var(--primary);
background-color: var(--card);
}
/* Checkmark. */
[data-uiify-checkbox] > input::before {
content: "";
inline-size: 1rem;
block-size: 1rem;
transform: scale(0);
transition: transform var(--duration-fast) var(--ease-out);
background-color: var(--primary-foreground);
mask: var(--uiify-checkbox-mask);
}
[data-uiify-checkbox] > input:checked::before,
[data-uiify-checkbox] > input[data-state="checked"]::before {
transform: scale(1);
}
/* Indeterminate dash. */
[data-uiify-checkbox] > input:indeterminate,
[data-uiify-checkbox] > input[data-state="indeterminate"] {
border-color: var(--primary);
background-color: var(--primary);
}
[data-uiify-checkbox] > input:indeterminate::before,
[data-uiify-checkbox] > input[data-state="indeterminate"]::before {
transform: scale(1);
mask: none;
clip-path: inset(42% 12% 42% 12%);
}
:where([data-uiify-checkbox] > input, [data-uiify-radio]):disabled,
:where([data-uiify-checkbox] > input, [data-uiify-radio])[data-disabled] {
opacity: 0.5;
cursor: not-allowed;
}
[data-uiify-checkbox]:has(> input:disabled) {
opacity: 0.5;
cursor: not-allowed;
}
[data-uiify-radio-group] {
display: flex;
flex-direction: column;
gap: var(--space-md);
}
/* Switch — a pill track with a sliding thumb pseudo-element. */
[data-uiify-switch] {
appearance: none;
position: relative;
inline-size: 2.25rem;
block-size: 1.25rem;
margin: 0;
flex: none;
border: none;
border-radius: var(--radius-full);
background-color: var(--input);
cursor: pointer;
transition: background-color var(--duration-fast) var(--ease-out);
}
[data-uiify-switch]::before {
content: "";
position: absolute;
inset-block-start: 2px;
inset-inline-start: 2px;
inline-size: calc(1.25rem - 4px);
block-size: calc(1.25rem - 4px);
border-radius: var(--radius-full);
background-color: var(--gray-0);
box-shadow: var(--shadow-1);
transition: translate var(--duration-fast) var(--ease-out);
}
[data-uiify-switch]:checked,
[data-uiify-switch][data-state="checked"] {
background-color: var(--primary);
}
[data-uiify-switch]:checked::before,
[data-uiify-switch][data-state="checked"]::before {
translate: 1rem 0;
}
[data-uiify-switch]:disabled,
[data-uiify-switch][data-disabled] {
opacity: 0.5;
cursor: not-allowed;
}
}
@layer components {
label:has([data-uiify-radio]),
[data-uiify-radio-group] label {
user-select: none;
cursor: pointer;
}
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import { Checkbox } from "@gunkin/uiify";
export default function Example() {
return (
<Checkbox
className={
"focus-visible:[outline:none] focus-visible:[box-shadow:0_0_0_var(--ring-width)_color-mix(in_oklch,_var(--ri" +
"ng)_16%,_transparent)] [&>input]:appearance-none [&>input]:[inline-size:1.25rem] [&>input]:[block-size:1.25" +
"rem] [&>input]:m-0 [&>input]:border-[length:var(--border-width)] [&>input]:border-solid [&>input]:border-in" +
"put [&>input]:bg-card [&>input]:inline-grid [&>input]:place-content-center [&>input]:cursor-pointer [&>inpu" +
"t]:[transition:var(--transition-colors)] [--uiify-checkbox-mask:url(\"data:image/svg+xml,%3Csvg%20xmlns=%27h" +
"ttp://www.w3.org/2000/svg%27%20viewBox=%270%200%2016%2016%27%3E%3Cpath%20d=%27M3.6%208.6l3%203L12.4%204.8%2" +
"7%20fill=%27none%27%20stroke=%27%23000%27%20stroke-width=%272%27%20stroke-linecap=%27round%27%20stroke-line" +
"join=%27round%27/%3E%3C/svg%3E\")_center_/_100%_100%_no-repeat] inline-flex items-center gap-sm cursor-point" +
"er select-none text-foreground text-sm [line-height:var(--leading-normal)] [&>input]:rounded-xs [&>input]:[" +
"corner-shape:squircle] [&>input:checked]:border-primary [&>input:checked]:bg-primary [&>input[data-state=ch" +
"ecked]]:border-primary [&>input[data-state=checked]]:bg-primary [&>input::before]:content-[''] [&>input::be" +
"fore]:[inline-size:1rem] [&>input::before]:[block-size:1rem] [&>input::before]:[transform:scale(0)] [&>inpu" +
"t::before]:[transition:transform_var(--duration-fast)_var(--ease-out)] [&>input::before]:bg-primary-foregro" +
"und [&>input::before]:[mask:var(--uiify-checkbox-mask)] [&>input:checked::before]:[transform:scale(1)] [&>i" +
"nput[data-state=checked]::before]:[transform:scale(1)] [&>input:indeterminate]:border-primary [&>input:inde" +
"terminate]:bg-primary [&>input[data-state=indeterminate]]:border-primary [&>input[data-state=indeterminate]" +
"]:bg-primary [&>input:indeterminate::before]:[transform:scale(1)] [&>input:indeterminate::before]:[mask:non" +
"e] [&>input:indeterminate::before]:[clip-path:inset(42%_12%_42%_12%)] [&>input[data-state=indeterminate]::b" +
"efore]:[transform:scale(1)] [&>input[data-state=indeterminate]::before]:[mask:none] [&>input[data-state=ind" +
"eterminate]::before]:[clip-path:inset(42%_12%_42%_12%)] [&>input:disabled]:opacity-50 [&>input:disabled]:cu" +
"rsor-not-allowed [&>input[data-disabled]]:opacity-50 [&>input[data-disabled]]:cursor-not-allowed [&:has(>in" +
"put:disabled)]:opacity-50 [&:has(>input:disabled)]:cursor-not-allowed"
}
id="terms"
label="Accept terms"
/>
);
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/* app.css */
@layer reset, ui, app, tokens, base, demo, components, utilities, theme;
@import "@gunkin/uiify/styles/reset";
@import "@gunkin/uiify/components/behavior.css";
@import "@gunkin/uiify/styles/tokens";
@import "@gunkin/uiify/styles/tailwind";
@import "tailwindcss/utilities.css";
@theme { --spacing: 0.25rem; --font-weight-normal: 400; --font-weight-medium: 500; --font-weight-semibold: 600; --font-weight-bold: 700; }
@source inline('focus-visible:[outline:none] focus-visible:[box-shadow:0_0_0_var(--ring-width)_color-mix(in_oklch,_var(--ring)_16%,_transparent)] [&>input]:appearance-none [&>input]:[inline-size:1.25rem] [&>input]:[block-size:1.25rem] [&>input]:m-0 [&>input]:border-[length:var(--border-width)] [&>input]:border-solid [&>input]:border-input [&>input]:bg-card [&>input]:inline-grid [&>input]:place-content-center [&>input]:cursor-pointer [&>input]:[transition:var(--transition-colors)] [--uiify-checkbox-mask:url("data:image/svg+xml,%3Csvg%20xmlns=%27http://www.w3.org/2000/svg%27%20viewBox=%270%200%2016%2016%27%3E%3Cpath%20d=%27M3.6%208.6l3%203L12.4%204.8%27%20fill=%27none%27%20stroke=%27%23000%27%20stroke-width=%272%27%20stroke-linecap=%27round%27%20stroke-linejoin=%27round%27/%3E%3C/svg%3E")_center_/_100%_100%_no-repeat] inline-flex items-center gap-sm cursor-pointer select-none text-foreground text-sm [line-height:var(--leading-normal)] [&>input]:rounded-xs [&>input]:[corner-shape:squircle] [&>input:checked]:border-primary [&>input:checked]:bg-primary [&>input[data-state=checked]]:border-primary [&>input[data-state=checked]]:bg-primary [&>input::before]:[inline-size:1rem] [&>input::before]:[block-size:1rem] [&>input::before]:[transform:scale(0)] [&>input::before]:[transition:transform_var(--duration-fast)_var(--ease-out)] [&>input::before]:bg-primary-foreground [&>input::before]:[mask:var(--uiify-checkbox-mask)] [&>input:checked::before]:[transform:scale(1)] [&>input[data-state=checked]::before]:[transform:scale(1)] [&>input:indeterminate]:border-primary [&>input:indeterminate]:bg-primary [&>input[data-state=indeterminate]]:border-primary [&>input[data-state=indeterminate]]:bg-primary [&>input:indeterminate::before]:[transform:scale(1)] [&>input:indeterminate::before]:[mask:none] [&>input:indeterminate::before]:[clip-path:inset(42%_12%_42%_12%)] [&>input[data-state=indeterminate]::before]:[transform:scale(1)] [&>input[data-state=indeterminate]::before]:[mask:none] [&>input[data-state=indeterminate]::before]:[clip-path:inset(42%_12%_42%_12%)] [&>input:disabled]:opacity-50 [&>input:disabled]:cursor-not-allowed [&>input[data-disabled]]:opacity-50 [&>input[data-disabled]]:cursor-not-allowed [&:has(>input:disabled)]:opacity-50 [&:has(>input:disabled)]:cursor-not-allowed');
@source inline("[&>input::before]:content-['']");
@layer base { :root { --uiify-control-text: var(--text-sm); } @media (pointer: coarse) { :root { --uiify-control-text: var(--text-base); } } }
/* Authored animation and registered properties used by the Tailwind skin.
* Visual rules belong in utility recipes; only at-rule definitions live here. */
@layer components {
@keyframes uiify-presence-in {
from {
opacity: 0;
scale: var(--presence-scale);
}
}
}
@layer components {
@keyframes uiify-presence-out {
to {
opacity: 0;
scale: var(--presence-scale);
}
}
}
@property --uiify-spinner-tail {
syntax: "<angle>";
inherits: false;
initial-value: 0deg;
}
@property --uiify-spinner-length {
syntax: "<angle>";
inherits: false;
initial-value: 36deg;
}
@layer components {
@keyframes uiify-spinner-rotate {
to {
transform: rotate(360deg);
}
}
}
@layer components {
@keyframes uiify-spinner-orbit {
0% {
--uiify-spinner-tail: 0deg;
--uiify-spinner-length: 36deg;
}
50% {
--uiify-spinner-tail: 90deg;
--uiify-spinner-length: 324deg;
}
100% {
--uiify-spinner-tail: 360deg;
--uiify-spinner-length: 36deg;
}
}
}
@layer components {
@keyframes uiify-skeleton-pulse {
50% {
opacity: 0.45;
}
}
}
@layer components {
@keyframes uiify-skeleton-shimmer {
to {
background-position: -200% 0;
}
}
}
@layer components {
@keyframes uiify-skeleton-reveal {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
}
@property --candle-body-height {
syntax: "<percentage>";
inherits: true;
initial-value: 0%;
}
@property --candle-body-top {
syntax: "<percentage>";
inherits: true;
initial-value: 50%;
}
@property --candle-slot {
syntax: "<percentage>";
inherits: true;
initial-value: 100%;
}
@property --candle-wick-height {
syntax: "<percentage>";
inherits: true;
initial-value: 0%;
}
@property --candle-wick-top {
syntax: "<percentage>";
inherits: true;
initial-value: 50%;
}
@property --candle-x {
syntax: "<percentage>";
inherits: true;
initial-value: 0%;
}
@property --candle-scale {
syntax: "<number>";
inherits: true;
initial-value: 1;
}
@property --line-y {
syntax: "<percentage>";
inherits: true;
initial-value: 50%;
}
@property --line-prev-y {
syntax: "<percentage>";
inherits: true;
initial-value: 50%;
}
@property --line-count {
syntax: "<integer>";
inherits: false;
initial-value: 1;
}
@property --line-scale {
syntax: "<number>";
inherits: true;
initial-value: 1;
}
@layer components {
@keyframes uiify-otp-input-caret-blink {
50% {
opacity: 0;
}
}
}API
Checkbox
| Prop | Type | Default | Description |
|---|---|---|---|
id* | string | — | Id of the native input, also used to link the label element. |
label | ReactNode | — | Label content rendered next to the input inside a wrapping label element. |
checked | boolean | "indeterminate" | — | Checked state, making the checkbox controlled; "indeterminate" renders the mixed state. |
defaultChecked | boolean | — | Starting checked state for the uncontrolled checkbox, which the browser then owns. |
disabled | boolean | false | Disables the native input and sets the data-disabled attribute. |
name | string | — | Name used when the checkbox is submitted with a form. |
value | string | — | Value submitted when the checkbox is checked. |
className | string | — | Class applied to the wrapping label element when a label is given. |
onCheckedChange | (checked: boolean) => void | — | Called with the new checked state when the user toggles the checkbox. |
aria-label | string | — | Accessible name used when no label is given. |
Keyboard
| Key | Action |
|---|---|
| Space | Toggle when focused |
Accessibility
Native checkbox input. Indeterminate state when applicable.
Styling hooks
data-statedata-disabled