Code Block
Code to read and copy: file name, line numbers, highlighted lines and a monochrome syntax in weight and light. Copy rolls to Copied; a terminal copies its commands only.
View codeLong content kept short until asked: a text cut by a soft fade, or a list that says how many items are left. It opens at its real height and the button's words roll.
With your AI
Say it to your AI. It gets the exact code below, not its best guess, and knows where it goes.
Shorten my long product description with Kodza Show More.
claude mcp add -t http kodza https://kodza.dev/api/mcp
<div class="kodza-more">
<div class="kodza-more__content">
<p>We started Kodza with one rule: every component should survive a copy and a paste. No build step, no framework, no “install these six packages first”.</p>
<p>So the CSS is scoped to its own classes, the JavaScript keeps to itself, and the HTML has no ids, so you can drop two of anything on the same page. It sounds boring. It is the point.</p>
<p>Then we added the fun part: motion that means something, a voice that does not take itself too seriously, and dark mode that is not an afterthought.</p>
</div>
<button class="kodza-more__toggle" type="button" aria-expanded="false">
<span class="kodza-more__words"><span>Read more</span><span>Read less</span></span>
<svg viewBox="0 0 12 12" aria-hidden="true"><path d="M3 4.5 6 7.5l3-3" /></svg>
</button>
</div>
<div class="kodza-more kodza-more--list" data-visible="4">
<ul class="kodza-more__content">
<li>Spinner draws a tick when it is done</li>
<li>Progress rolls its digits</li>
<li>Skeleton takes its bones from the content</li>
<li>Alert folds away without a jump</li>
<li>Top Loading Bar slips off to the right</li>
<li>Empty State fans out its cards</li>
<li>Toast stacks like a deck</li>
<li>Tooltip glides between buttons</li>
<li>Cookie Consent makes Reject as easy as Accept</li>
<li>Product Tour irises in</li>
</ul>
<button class="kodza-more__toggle" type="button" aria-expanded="false">
<span class="kodza-more__words"><span>Show 6 more</span><span>Show less</span></span>
<svg viewBox="0 0 12 12" aria-hidden="true"><path d="M3 4.5 6 7.5l3-3" /></svg>
</button>
</div>
/* Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license */
/* Kodza — Show More
Long content kept short until asked: a text cut by a soft fade, or a list that shows its
first items (data-visible) and says how many are left. It opens at its real height, the
fade melts away, the hidden items rise in turn and the button's words roll. Closing brings
the top back into view if you had scrolled past it. With no more to show, no button.
Everything is tuned with the --kz-more-* variables. */
.kodza-more {
--kz-more-fg: #0a0a0a;
--kz-more-muted: rgba(10, 10, 10, 0.64);
--kz-more-line: rgba(10, 10, 10, 0.12);
--kz-more-soft: rgba(10, 10, 10, 0.05);
--kz-more-height: 9.6em;
--kz-more-fade: 4em;
--kz-more-width: auto; /* 100%: the content fills the width, for blocks (cards, a table) */
--kz-more-ease: cubic-bezier(0.22, 1, 0.36, 1);
display: grid;
justify-items: start;
gap: 14px;
color: var(--kz-more-fg);
font-size: 15px;
line-height: 1.6;
}
/* The text, cut by a fade that melts away once open */
.kodza-more__content {
width: var(--kz-more-width);
max-height: var(--kz-more-height);
margin: 0;
overflow: hidden;
color: var(--kz-more-muted);
-webkit-mask: linear-gradient(to bottom, #000 calc(100% - var(--kz-more-fade)), transparent) top / 100% 100% no-repeat;
mask: linear-gradient(to bottom, #000 calc(100% - var(--kz-more-fade)), transparent) top / 100% 100% no-repeat;
transition: -webkit-mask-size 0.6s var(--kz-more-ease), mask-size 0.6s var(--kz-more-ease);
}
.kodza-more__content > p {
margin: 0 0 0.8em;
text-wrap: pretty;
}
.kodza-more.is-open .kodza-more__content,
.kodza-more.is-short .kodza-more__content {
max-height: none;
-webkit-mask-size: 100% 400%;
mask-size: 100% 400%;
}
/* Closing: the fade comes back while the text folds */
.kodza-more.is-closing .kodza-more__content {
-webkit-mask-size: 100% 100%;
mask-size: 100% 100%;
}
.kodza-more.is-short .kodza-more__toggle {
display: none;
}
/* The list: the first items only, no fade */
.kodza-more--list .kodza-more__content {
max-height: none;
padding: 0;
list-style: none;
-webkit-mask: none;
mask: none;
}
.kodza-more--list .kodza-more__content > li {
display: flex;
align-items: center;
gap: 12px;
padding: 9px 0;
border-bottom: 1px solid var(--kz-more-line);
color: var(--kz-more-fg);
}
.kodza-more--list .kodza-more__content > li::before {
content: "";
flex: none;
width: 5px;
height: 5px;
border-radius: 50%;
background: currentColor;
opacity: 0.5;
}
.kodza-more--list .kodza-more__content > li.is-extra {
display: none;
}
.kodza-more--list.is-open .kodza-more__content > li.is-extra {
display: flex;
}
/* The button: its words roll, its chevron turns */
.kodza-more__toggle {
display: inline-flex;
align-items: center;
gap: 8px;
height: 36px;
margin-left: -12px;
padding: 0 12px;
border: 0;
border-radius: 999px;
background: none;
color: var(--kz-more-fg);
font: inherit;
font-size: 14px;
font-weight: 500;
cursor: pointer;
transition: background-color 0.2s ease;
}
.kodza-more__toggle:hover {
background: var(--kz-more-soft);
}
.kodza-more__toggle:focus-visible {
outline: 2px solid var(--kz-more-fg);
outline-offset: 2px;
}
.kodza-more__words {
display: inline-grid;
overflow: hidden;
}
.kodza-more__words > span {
grid-area: 1 / 1;
transition: transform 0.45s var(--kz-more-ease), opacity 0.25s ease;
}
.kodza-more__words > span:nth-child(2),
.kodza-more__toggle[aria-expanded="true"] .kodza-more__words > span:first-child {
opacity: 0;
transform: translateY(-110%);
}
.kodza-more__words > span:nth-child(2) {
transform: translateY(110%);
}
.kodza-more__toggle[aria-expanded="true"] .kodza-more__words > span:nth-child(2) {
opacity: 1;
transform: none;
}
.kodza-more__toggle svg {
width: 12px;
height: 12px;
fill: none;
stroke: currentColor;
stroke-width: 1.6;
stroke-linecap: round;
stroke-linejoin: round;
transition: transform 0.45s var(--kz-more-ease);
}
.kodza-more__toggle[aria-expanded="true"] svg {
transform: rotate(180deg);
}
@media (prefers-reduced-motion: reduce) {
.kodza-more__content,
.kodza-more__words > span,
.kodza-more__toggle svg {
transition-duration: 0.01ms !important;
}
}
/* Theming example — on a dark background:
.dark-section .kodza-more {
--kz-more-fg: #f2f2f0;
--kz-more-muted: rgba(242, 242, 240, 0.64);
--kz-more-line: rgba(255, 255, 255, 0.12);
--kz-more-soft: rgba(255, 255, 255, 0.08);
}
*/
/* kodza-guard 27f55ca85191 — generated by Kodza, do not edit.
Theme guard: keeps a site's own CSS (WordPress themes, Bootstrap, CSS resets…) off this
component. :not(#_) is always true and weighs as much as an id, so these lines win over
theme rules made of classes and tags. Customise the component through its --kz-* variables. */
/* What the browser gives, where the component sets it only in some states: at the lowest weight, so its own rules below put it back */
:where(.kodza-more__toggle):not(#_) {
outline: revert;
outline-offset: revert;
}
/* What the browser gives, on everything the component leaves to it */
.kodza-more:not(#_),
.kodza-more__words:not(#_),
.kodza-more__words span:where(:not([class*="kodza-"])):not(#_) {
box-sizing: revert;
}
.kodza-more__content:not(#_) {
border: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
box-sizing: revert;
float: revert;
position: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: revert;
max-width: revert;
font-family: revert;
font-size: revert;
font-weight: revert;
font-style: revert;
line-height: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-more__toggle:not(#_) {
text-decoration: revert;
list-style: revert;
box-sizing: revert;
float: revert;
position: revert;
margin-top: revert;
margin-right: revert;
margin-bottom: revert;
box-shadow: revert;
appearance: revert;
max-width: revert;
max-height: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
white-space: revert;
min-height: revert;
}
.kodza-more__content p:where(:not([class*="kodza-"]):not(.kodza-more__content [class*="kodza-"] *)):not(#_) {
border: revert;
padding: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
transition: revert;
list-style: revert;
box-sizing: revert;
float: revert;
position: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: revert;
max-width: revert;
max-height: revert;
color: revert;
font-family: revert;
font-size: revert;
font-weight: revert;
font-style: revert;
line-height: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-more__toggle svg:where(:not([class*="kodza-"])):not(#_) {
border: revert;
margin: revert;
padding: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
list-style: revert;
box-sizing: revert;
float: revert;
position: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: revert;
max-width: revert;
max-height: revert;
color: revert;
font-family: revert;
font-size: revert;
font-weight: revert;
font-style: revert;
line-height: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-more__content li:where(:not([class*="kodza-"]):not(.kodza-more__content [class*="kodza-"] *)):not(#_) {
margin: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
transition: revert;
list-style: revert;
box-sizing: revert;
float: revert;
position: revert;
border-top-width: revert;
border-right-width: revert;
border-left-width: revert;
border-top-style: revert;
border-right-style: revert;
border-left-style: revert;
border-top-color: revert;
border-right-color: revert;
border-left-color: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: revert;
max-width: revert;
max-height: revert;
font-family: revert;
font-size: revert;
font-weight: revert;
font-style: revert;
line-height: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-more__content:not(#_):where(:not([hidden])),
.kodza-more__content p:where(:not([class*="kodza-"]):not(.kodza-more__content [class*="kodza-"] *)):not(#_):where(:not([hidden])),
.kodza-more__toggle svg:where(:not([class*="kodza-"])):not(#_):where(:not([hidden])) {
display: revert;
}
.kodza-more__content:not(#_):where([hidden]),
.kodza-more__content p:where(:not([class*="kodza-"]):not(.kodza-more__content [class*="kodza-"] *)):not(#_):where([hidden]),
.kodza-more__toggle svg:where(:not([class*="kodza-"])):not(#_):where([hidden]) {
display: none;
}
/* The component's own rules, one step stronger: real buttons and fields, what it sets on tags themes style (links, lists, headings, images…), and the root width (a theme may narrow it, never widen it) */
.kodza-more__content:where(ul):not(#_) {
max-height: var(--kz-more-height);
margin: 0;
color: var(--kz-more-muted);
transition: -webkit-mask-size 0.6s var(--kz-more-ease), mask-size 0.6s var(--kz-more-ease);
}
.kodza-more__content > p:not(#_) {
margin: 0 0 0.8em;
}
.kodza-more.is-open .kodza-more__content:where(ul):not(#_),
.kodza-more.is-short .kodza-more__content:where(ul):not(#_) {
max-height: none;
}
.kodza-more.is-short .kodza-more__toggle:not(#_) {
display: none;
}
.kodza-more--list .kodza-more__content:where(ul):not(#_) {
max-height: none;
padding: 0;
list-style: none;
}
.kodza-more--list .kodza-more__content > li:not(#_) {
display: flex;
padding: 9px 0;
border-bottom: 1px solid var(--kz-more-line);
color: var(--kz-more-fg);
}
.kodza-more--list .kodza-more__content > li.is-extra:not(#_) {
display: none;
}
.kodza-more--list.is-open .kodza-more__content > li.is-extra:not(#_) {
display: flex;
}
.kodza-more__toggle:not(#_) {
display: inline-flex;
align-items: center;
gap: 8px;
height: 36px;
margin-left: -12px;
padding: 0 12px;
border: 0;
border-radius: 999px;
background: none;
color: var(--kz-more-fg);
font: inherit;
font-size: 14px;
font-weight: 500;
cursor: pointer;
transition: background-color 0.2s ease;
}
.kodza-more__toggle:hover:not(#_) {
background: var(--kz-more-soft);
}
.kodza-more__toggle:focus-visible:not(#_) {
outline: 2px solid var(--kz-more-fg);
outline-offset: 2px;
}
.kodza-more__toggle svg:not(#_) {
transition: transform 0.45s var(--kz-more-ease);
}
@media (prefers-reduced-motion: reduce) {
.kodza-more__content:where(ul):not(#_),
.kodza-more__toggle svg:not(#_) {
transition-duration: 0.01ms !important;
}
}
// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Kodza — Show More
// Opens and closes at the real height (Web Animations), rises the items that were hidden,
// keeps aria-expanded in step, and brings the top back into view when closing past it.
// A list shows its first data-visible items; with nothing more to show, the button goes.
(() => {
const SELECTOR = '.kodza-more';
const reduceMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
const ease = 'cubic-bezier(0.22, 1, 0.36, 1)';
const fold = 'cubic-bezier(0.65, 0, 0.35, 1)';
let uid = 0;
// One instance. Everything it starts is tied to `signal`, so kodza:destroy stops it all
function mount(root, signal) {
const content = root.querySelector('.kodza-more__content');
const toggle = root.querySelector('.kodza-more__toggle');
if (!content || !toggle) return;
content.id = content.id || `kodza-more-${++uid}`;
toggle.setAttribute('aria-controls', content.id);
// A list: the items past data-visible wait behind the button
const visible = parseInt(root.dataset.visible, 10);
const extra = Number.isNaN(visible) ? [] : [...content.children].slice(visible);
extra.forEach((item) => item.classList.add('is-extra'));
const measure = () => {
if (Number.isNaN(visible)) root.classList.toggle('is-short', !root.classList.contains('is-open') && content.scrollHeight <= content.clientHeight + 2);
else root.classList.toggle('is-short', !extra.length);
};
measure();
const observer = new ResizeObserver(measure);
observer.observe(root);
signal.addEventListener('abort', () => observer.disconnect());
toggle.addEventListener('click', () => {
const opening = toggle.getAttribute('aria-expanded') !== 'true';
content.getAnimations().forEach((animation) => animation.cancel());
root.classList.remove('is-closing');
const from = content.offsetHeight;
toggle.setAttribute('aria-expanded', String(opening));
if (opening) {
root.classList.add('is-open');
const to = content.offsetHeight;
if (reduceMotion) return;
content.animate([{ height: `${from}px` }, { height: `${to}px` }], { duration: 640, easing: ease });
extra.forEach((item, i) => item.animate([
{ opacity: 0, transform: 'translateY(12px)' },
{ opacity: 1, transform: 'none' },
], { duration: 520, delay: 80 + i * 55, easing: ease, fill: 'backwards' }));
return;
}
// Closing: measure the short state, but stay open (items shown, no cap) until the end
root.classList.remove('is-open');
const to = content.offsetHeight;
root.classList.add('is-open');
const top = root.getBoundingClientRect().top;
if (top < 0) window.scrollBy({ top: top - 24, behavior: reduceMotion ? 'auto' : 'smooth' });
if (reduceMotion) return root.classList.remove('is-open');
root.classList.add('is-closing');
content.animate([{ height: `${from}px` }, { height: `${to}px` }], { duration: 480, easing: fold }).onfinish = () => !signal.aborted && root.classList.remove('is-open', 'is-closing');
}, { signal });
}
// Kodza lifecycle, the same in every component: `kodza:init` starts the instances inside
// event.detail.root (the whole page by default), `kodza:destroy` stops them and puts their
// markup back. For themes and apps that swap content without a page load.
const instances = new WeakMap();
const find = (scope = document) => [scope, ...scope.querySelectorAll(SELECTOR)].filter((el) => el.matches?.(SELECTOR));
const init = (scope) => find(scope).forEach((root) => {
if (root.classList.contains('is-ready')) return; // already running, maybe from another copy of this script
const controller = new AbortController();
instances.set(root, { controller, html: root.innerHTML, attrs: [...root.attributes].map((a) => [a.name, a.value]) });
mount(root, controller.signal);
root.classList.add('is-ready');
});
const destroy = (scope) => find(scope).forEach((root) => {
const instance = instances.get(root);
if (!instance) return;
instances.delete(root);
instance.controller.abort();
[...root.attributes].forEach((a) => root.removeAttribute(a.name));
instance.attrs.forEach(([name, value]) => root.setAttribute(name, value));
root.innerHTML = instance.html;
});
document.addEventListener('kodza:init', (event) => init(event.detail?.root));
document.addEventListener('kodza:destroy', (event) => destroy(event.detail?.root));
init();
// Loaded in <head>, the script runs before the markup exists: once more when it is parsed
if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', () => init(), { once: true });
})();
'use client';
// Kodza — Show More, for React. From https://kodza.dev/components/collapsible/
// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Next to this file: collapsible.css and collapsible.js, the component's CSS and JS from Kodza, as they are.
// Yours to edit: the markup is plain JSX below.
// The script changes this markup once React has rendered it (it adds layers, splits text, moves
// nodes), so React must not patch it afterwards. When a prop changes, the key gives React a fresh
// element: kodza:destroy stops the script on the old one, kodza:init starts it on the new one.
import { useRef, useEffect, type ComponentPropsWithoutRef, type ComponentRef, type CSSProperties } from 'react';
import './collapsible.css';
type Variant = "list";
export type ShowMoreProps = Omit<ComponentPropsWithoutRef<'div'>, "children" | "variant" | "vars" | "visible"> & {
/** Modifier class(es): .kodza-more--list */
variant?: Variant | Variant[];
/** data-visible on the root */
visible?: "4";
/** Settings, as CSS variables on the root */
vars?: {
/** default: #0a0a0a */
"--kz-more-fg"?: string | number;
/** default: rgba(10, 10, 10, 0.64) */
"--kz-more-muted"?: string | number;
/** default: rgba(10, 10, 10, 0.12) */
"--kz-more-line"?: string | number;
/** default: rgba(10, 10, 10, 0.05) */
"--kz-more-soft"?: string | number;
/** default: 9.6em */
"--kz-more-height"?: string | number;
/** default: 4em */
"--kz-more-fade"?: string | number;
/** 100%: the content fills the width, for blocks (cards, a table) — default: auto */
"--kz-more-width"?: string | number;
/** default: cubic-bezier(0.22, 1, 0.36, 1) */
"--kz-more-ease"?: string | number;
};
className?: string;
};
export function ShowMore({ variant, visible, vars, className, style, ...rest }: ShowMoreProps) {
const ref = useRef<ComponentRef<'div'>>(null);
const classes = ["kodza-more", ...([] as string[]).concat(variant ?? []).map((v) => `kodza-more--${v}`), className].filter(Boolean).join(' ');
// Everything the markup is made of: when it changes, React gets a fresh element (see the top)
const key = JSON.stringify([classes, visible, vars, style, rest]);
// Starts the script on this element once React has rendered it, stops it when it goes
useEffect(() => {
const root = ref.current;
let live = true;
// @ts-ignore: a plain script, no types to find
import('./collapsible.js').then(() => {
if (live) document.dispatchEvent(new CustomEvent('kodza:init', { detail: { root } }));
});
return () => {
live = false;
document.dispatchEvent(new CustomEvent('kodza:destroy', { detail: { root } }));
};
}, [key]);
return (
<div key={key} {...rest} className={classes} data-visible={visible} style={{ ...vars, ...style } as CSSProperties} ref={ref}>
<div className="kodza-more__content">
<p>We started Kodza with one rule: every component should survive a copy and a paste. No build step, no framework, no “install these six packages first”.</p>
<p>So the CSS is scoped to its own classes, the JavaScript keeps to itself, and the HTML has no ids, so you can drop two of anything on the same page. It sounds boring. It is the point.</p>
<p>Then we added the fun part: motion that means something, a voice that does not take itself too seriously, and dark mode that is not an afterthought.</p>
</div>
<button className="kodza-more__toggle" type="button" aria-expanded="false">
<span className="kodza-more__words">
<span>Read more</span>
<span>Read less</span>
</span>
{' '}
<svg viewBox="0 0 12 12" aria-hidden="true">
<path d="M3 4.5 6 7.5l3-3" />
</svg>
</button>
</div>
);
}
Checked
Robots poked at it before you did. Every component goes through the same checks, and again each time it changes.