Form Error Summary
A server-rendered summary linking each error to its field.
- Browsers
- Chrome 123+, Firefox 121+, Safari 17.5+
- Tier
- 0
- Forced layout budget
- 0 ms
- Axe budget
- 0
- SSR compatible
- Yes
- Published contract
- Test harness
Playground
Form Error Summary
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import { FormErrorSummary, Input } from "@gunkin/uiify";
export default function Example() {
return (
<form className="example-form" aria-label="Account details">
<FormErrorSummary
className=""
aria-label="Account errors"
title="There is a problem"
errors={[
{ href: "#form-error-summary-email", message: "Enter a valid email address" },
{ href: "#form-error-summary-password", message: "Use at least 8 characters" },
]}
/>
<div className="example-field">
<label htmlFor="form-error-summary-email">Email</label>
<Input
className=""
id="form-error-summary-email"
invalid
name="email"
type="email"
autoComplete="email"
defaultValue="alex@"
aria-describedby="form-error-summary-email-error"
/>
<p className="example-error" id="form-error-summary-email-error">
Enter a valid email address
</p>
</div>
<div className="example-field">
<label htmlFor="form-error-summary-password">Password</label>
<Input
className=""
id="form-error-summary-password"
invalid
name="password"
type="password"
autoComplete="new-password"
defaultValue="pass"
aria-describedby="form-error-summary-password-error"
/>
<p className="example-error" id="form-error-summary-password-error">
Use at least 8 characters
</p>
</div>
</form>
);
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/* Text fields — Input and Textarea share the same surface. Invalid state keys
off the [data-invalid] attribute the components emit. Textarea autosize uses
the native field-sizing (Chrome 123+) when the component sets data-autosize. */
@layer components {
:where([data-uiify-input], [data-uiify-textarea]) {
display: block;
inline-size: 100%;
max-inline-size: 24rem;
padding-block: var(--space-sm);
padding-inline: var(--space-md);
border: var(--border-width) solid var(--input);
border-radius: var(--radius-md);
corner-shape: squircle;
background-color: var(--card);
color: var(--foreground);
font-size: var(--uiify-control-text);
line-height: var(--leading-normal);
transition: var(--transition-colors);
}
:where([data-uiify-input], [data-uiify-textarea])::placeholder {
color: var(--muted-foreground);
}
:where([data-uiify-input], [data-uiify-textarea]):focus-visible {
border-color: var(--primary);
}
:where([data-uiify-input], [data-uiify-textarea]):disabled,
:where([data-uiify-input], [data-uiify-textarea])[data-disabled] {
opacity: 0.5;
cursor: not-allowed;
}
:where([data-uiify-input], [data-uiify-textarea])[data-invalid],
:where([data-uiify-input], [data-uiify-textarea]):user-invalid {
border-color: var(--destructive);
}
:where([data-uiify-input], [data-uiify-textarea])[data-invalid]:focus-visible {
outline-color: var(--destructive);
}
[data-uiify-textarea] {
min-block-size: 4lh;
resize: block;
}
[data-uiify-textarea][data-autosize] {
field-sizing: content;
resize: none;
}
[data-uiify-field] {
display: grid;
gap: var(--space-sm);
inline-size: 100%;
max-inline-size: 24rem;
}
[data-uiify-field] [data-part="label"] {
color: var(--foreground);
font-size: var(--text-sm);
font-weight: var(--weight-medium);
line-height: var(--leading-normal);
}
[data-uiify-field] [data-part="label"][data-required]::after {
content: " *";
color: var(--destructive);
}
[data-uiify-field] [data-part="description"] {
margin: 0;
color: var(--muted-foreground);
font-size: var(--text-xs);
line-height: var(--leading-normal);
}
[data-uiify-field] [data-part="error"] {
margin: 0;
color: var(--destructive);
font-size: var(--text-xs);
line-height: var(--leading-normal);
}
/* Shared presence fade when an error message is mounted. */
@media (prefers-reduced-motion: no-preference) {
[data-uiify-field] [data-part="error"] {
transition: opacity var(--duration-fast) var(--ease-out);
}
@starting-style {
[data-uiify-field] [data-part="error"] {
opacity: 0;
}
}
}
}
@layer components {
[data-uiify-form-error-summary] {
display: grid;
gap: var(--space-sm);
inline-size: 100%;
max-inline-size: 24rem;
min-inline-size: 0;
font-size: var(--text-sm);
line-height: var(--leading-normal);
overflow-wrap: anywhere;
padding-block: var(--space-md);
padding-inline: var(--space-md);
border: var(--border-width) solid color-mix(in oklab, var(--destructive) 45%, var(--border));
border-radius: var(--radius-md);
corner-shape: squircle;
background: color-mix(in oklab, var(--destructive) 4%, var(--background));
color: var(--foreground);
text-wrap: pretty;
}
[data-uiify-form-error-summary] > [data-part="title"] {
margin: 0;
font-size: inherit;
font-weight: var(--weight-semibold);
}
[data-uiify-form-error-summary] > [data-part="list"] {
display: grid;
gap: var(--space-xs);
margin: 0;
padding-inline-start: 1.25em;
}
[data-uiify-form-error-summary] a {
color: var(--destructive);
text-decoration: underline;
text-underline-offset: 0.15em;
}
[data-uiify-form-error-summary] a:focus-visible {
outline: var(--ring-width) solid var(--ring);
outline-offset: 0.2em;
}
}
/* Example layout; component surfaces use the skins above. */
.example-form, .example-field {
display: grid;
box-sizing: border-box;
inline-size: 100%;
max-inline-size: 24rem;
min-inline-size: 0;
margin: 0;
}
:is(.example-form, .example-field) * { box-sizing: border-box; }
.example-form { gap: 1.5rem; }
.example-field { gap: 0.5rem; }
.example-field > label {
color: var(--foreground);
font-size: 0.875rem;
font-weight: 500;
line-height: 1.5;
}
.example-field > [data-uiify-input] { min-block-size: 2.75rem; }
.example-description, .example-error {
margin: 0;
font-size: 0.75rem;
line-height: 1.5;
overflow-wrap: anywhere;
}
.example-description { color: var(--muted-foreground); }
.example-error { color: var(--destructive); }
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import { FormErrorSummary, Input } from "@gunkin/uiify";
export default function Example() {
return (
<form className="grid gap-6 [inline-size:100%] [max-inline-size:24rem]" aria-label="Account details">
<FormErrorSummary
className="
grid gap-sm [inline-size:100%] [max-inline-size:24rem] [min-inline-size:0] text-sm
[line-height:var(--leading-normal)] [overflow-wrap:anywhere] py-md px-md border-[length:var(--border-width)]
border-solid [border-color:color-mix(in_oklab,_var(--destructive)_45%,_var(--border))] rounded-md
[corner-shape:squircle] [background:color-mix(in_oklab,_var(--destructive)_4%,_var(--background))]
text-foreground text-pretty [&>[data-part=title]]:m-0 [&>[data-part=title]]:text-[length:inherit]
[&>[data-part=title]]:font-[number:var(--weight-semibold)] [&>[data-part=list]]:grid
[&>[data-part=list]]:gap-xs [&>[data-part=list]]:m-0 [&>[data-part=list]]:[padding-inline-start:1.25em]
[&_a]:text-destructive [&_a]:underline [&_a]:[text-underline-offset:0.15em]
[&_a:focus-visible]:[outline:var(--ring-width)_solid_var(--ring)] [&_a:focus-visible]:[outline-offset:0.2em]
"
aria-label="Account errors"
title="There is a problem"
errors={[
{ href: "#form-error-summary-email", message: "Enter a valid email address" },
{ href: "#form-error-summary-password", message: "Use at least 8 characters" },
]}
/>
<div className="grid gap-2 [min-inline-size:0]">
<label htmlFor="form-error-summary-email">Email</label>
<Input
className="
focus-visible:[outline:none]
focus-visible:[box-shadow:0_0_0_var(--ring-width)_color-mix(in_oklch,_var(--ring)_16%,_transparent)] block
[inline-size:100%] [max-inline-size:24rem] py-sm px-md border-[length:var(--border-width)] border-solid
border-input rounded-md [corner-shape:squircle] bg-card text-foreground
[font-size:var(--uiify-control-text)] [line-height:var(--leading-normal)]
[transition:var(--transition-colors)] placeholder:text-muted-foreground focus-visible:border-primary
disabled:opacity-50 disabled:cursor-not-allowed data-[disabled]:opacity-50
data-[disabled]:cursor-not-allowed data-[invalid]:border-destructive user-invalid:border-destructive
data-[invalid]:focus-visible:outline-destructive
"
id="form-error-summary-email"
invalid
name="email"
type="email"
autoComplete="email"
defaultValue="alex@"
aria-describedby="form-error-summary-email-error"
/>
<p className="m-0 text-xs text-destructive" id="form-error-summary-email-error">
Enter a valid email address
</p>
</div>
<div className="grid gap-2 [min-inline-size:0]">
<label htmlFor="form-error-summary-password">Password</label>
<Input
className="
focus-visible:[outline:none]
focus-visible:[box-shadow:0_0_0_var(--ring-width)_color-mix(in_oklch,_var(--ring)_16%,_transparent)] block
[inline-size:100%] [max-inline-size:24rem] py-sm px-md border-[length:var(--border-width)] border-solid
border-input rounded-md [corner-shape:squircle] bg-card text-foreground
[font-size:var(--uiify-control-text)] [line-height:var(--leading-normal)]
[transition:var(--transition-colors)] placeholder:text-muted-foreground focus-visible:border-primary
disabled:opacity-50 disabled:cursor-not-allowed data-[disabled]:opacity-50
data-[disabled]:cursor-not-allowed data-[invalid]:border-destructive user-invalid:border-destructive
data-[invalid]:focus-visible:outline-destructive
"
id="form-error-summary-password"
invalid
name="password"
type="password"
autoComplete="new-password"
defaultValue="pass"
aria-describedby="form-error-summary-password-error"
/>
<p className="m-0 text-xs text-destructive" id="form-error-summary-password-error">
Use at least 8 characters
</p>
</div>
</form>
);
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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('grid gap-sm [inline-size:100%] [max-inline-size:24rem] [min-inline-size:0] text-sm [line-height:var(--leading-normal)] [overflow-wrap:anywhere] py-md px-md border-[length:var(--border-width)] border-solid [border-color:color-mix(in_oklab,_var(--destructive)_45%,_var(--border))] rounded-md [corner-shape:squircle] [background:color-mix(in_oklab,_var(--destructive)_4%,_var(--background))] text-foreground text-pretty [&>[data-part=title]]:m-0 [&>[data-part=title]]:text-[length:inherit] [&>[data-part=title]]:font-[number:var(--weight-semibold)] [&>[data-part=list]]:grid [&>[data-part=list]]:gap-xs [&>[data-part=list]]:m-0 [&>[data-part=list]]:[padding-inline-start:1.25em] [&_a]:text-destructive [&_a]:underline [&_a]:[text-underline-offset:0.15em] [&_a:focus-visible]:[outline:var(--ring-width)_solid_var(--ring)] [&_a:focus-visible]:[outline-offset:0.2em] focus-visible:[outline:none] focus-visible:[box-shadow:0_0_0_var(--ring-width)_color-mix(in_oklch,_var(--ring)_16%,_transparent)] block py-sm border-input bg-card [font-size:var(--uiify-control-text)] [transition:var(--transition-colors)] placeholder:text-muted-foreground focus-visible:border-primary disabled:opacity-50 disabled:cursor-not-allowed data-[disabled]:opacity-50 data-[disabled]:cursor-not-allowed data-[invalid]:border-destructive user-invalid:border-destructive data-[invalid]:focus-visible:outline-destructive gap-2 gap-6 m-0 text-xs text-destructive');
@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;
}
}
}Examples
A single field error
The summary link focuses the matching field. Keep the same error below the field with aria-describedby; the static summary does not announce or move focus automatically.
import { FormErrorSummary, Input } from "@gunkin/uiify";
export default function Example() {
return (
<form className="example-form" aria-label="Project details">
<FormErrorSummary aria-label="Project errors" title="There is a problem" errors={[{ href: "#form-error-summary-single-project", message: "Choose a project name" }]} />
<div className="example-field">
<label htmlFor="form-error-summary-single-project">Project name</label>
<Input id="form-error-summary-single-project" name="project" invalid autoComplete="off" aria-describedby="form-error-summary-single-project-error" />
<p className="example-error" id="form-error-summary-single-project-error">Choose a project name</p>
</div>
</form>
);
}API
FormErrorSummary
| Prop | Type | Default | Description |
|---|---|---|---|
title* | ReactNode | — | Visible heading for the summary. |
errors* | readonly { href: string; message: ReactNode }[] | — | Each href must target the id of its corresponding field. |
className / style / ref / native section props | native section props | — | Native section props, styles, events, and ref are forwarded. |
render | ReactElement | ((props, state) => ReactElement) | — | Replace the rendered element while keeping behavior and accessibility wiring. |
Keyboard
| Key | Action |
|---|
Accessibility
Static section containing a heading and links to the supplied error targets. Every href must point to a real field id. This summary adds no alert role, live region, focus movement, or validation logic; fields retain their labels and inline aria-describedby relationships. Empty errors render nothing.
Styling hooks
data-uiify-form-error-summarydata-part="title|list|item|link"