Inner Parallax Image
A picture that drifts slower than the page inside a frame that stays put. It wraps the image WordPress writes in its own frame, and the picture overhangs by its whole travel, so no gap ever shows.
View codeImage Split Cards
One image laid over a row of cards. Pinned while you scroll, it splits along the gaps, then each piece turns over to show its card, one after the other. Scroll back and the picture comes back together.
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No dependencies
scrollimagecardsflip3dsplitfeatureslanding
Images 3:1 · mobile 1.71:1
Added Nov 2026
With your AI
Just ask.
Say it to your AI. It gets the exact code below, not its best guess, and knows where it goes.
Add the Kodza Image Split Cards to my page.
Not plugged in yet?
Also in Codex, Cursor and VS Code.
claude mcp add -t http kodza https://kodza.dev/api/mcp
<div class="kodza-image-split-cards" data-kodza-image-split-cards>
<div class="kodza-image-split-cards__stage">
<div class="kodza-image-split-cards__head">
<p class="kodza-image-split-cards__label">Why teams switch</p>
<h2 class="kodza-image-split-cards__heading">Three reasons to stop babysitting your deploys.</h2>
</div>
<div class="kodza-image-split-cards__deck">
<img class="kodza-image-split-cards__image" src="https://kodza.dev/media/kz-repeat-1400.webp" srcset="https://kodza.dev/media/kz-repeat-1400.webp 1400w, https://kodza.dev/media/kz-repeat-2400.webp 2400w" sizes="(max-width: 640px) 100vw, 1080px" alt="A concrete wall cut into a grid of deep square windows" width="1400" height="933" loading="lazy">
<ol class="kodza-image-split-cards__list">
<li class="kodza-image-split-cards__card">
<span class="kodza-image-split-cards__index" aria-hidden="true">01</span>
<h3 class="kodza-image-split-cards__title">One command</h3>
<p class="kodza-image-split-cards__text"><code>quay ship</code> builds, tests and deploys. No YAML copied from a 2019 blog post.</p>
</li>
<li class="kodza-image-split-cards__card">
<span class="kodza-image-split-cards__index" aria-hidden="true">02</span>
<h3 class="kodza-image-split-cards__title">Rollbacks that roll back</h3>
<p class="kodza-image-split-cards__text">Every release keeps its build. Going back takes four seconds, not a hotfix at midnight.</p>
</li>
<li class="kodza-image-split-cards__card">
<span class="kodza-image-split-cards__index" aria-hidden="true">03</span>
<h3 class="kodza-image-split-cards__title">Logs a human can read</h3>
<p class="kodza-image-split-cards__text">The line that broke is the first one you see. Not line 4,812 of a stack trace.</p>
</li>
</ol>
</div>
</div>
</div>/* Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license */
/* Kodza — Image Split Cards
One picture laid over a row of cards. As the scroll runs through the section, pinned in the
middle of the screen, the picture splits along the gaps and its inner corners round off, then
each piece turns over to show its card, one after the other. The text is real HTML from the
start. Without the script, or with reduced motion, the picture sits above the cards.
Tuned with the --kz-image-split-cards-* variables; the pacing of the turns is in the constants
at the top of component.js. */
.kodza-image-split-cards {
/* The column the head and the cards share, and the room kept on each side of a narrow screen */
--kz-image-split-cards-width: 1080px;
--kz-image-split-cards-gutter: 24px;
/* The gap the pieces open between them */
--kz-image-split-cards-gap: 16px;
/* A card's height side by side, then stacked (a narrow section, under 640px) */
--kz-image-split-cards-height: clamp(300px, 52svh, 440px);
--kz-image-split-cards-height-stacked: clamp(150px, 21svh, 200px);
/* How much scroll the section holds the screen for, on top of its own height */
--kz-image-split-cards-distance: 150svh;
/* Which part of the picture the cut keeps */
--kz-image-split-cards-position: 50% 50%;
--kz-image-split-cards-radius: calc(16px * var(--kz-radius-scale, 1));
--kz-image-split-cards-ink: var(--kz-color-ink, #0a0a0a);
--kz-image-split-cards-muted: color-mix(in srgb, var(--kz-image-split-cards-ink) 62%, transparent);
--kz-image-split-cards-surface: var(--kz-color-paper, #ffffff);
--kz-image-split-cards-border: color-mix(in srgb, var(--kz-image-split-cards-ink) 10%, transparent);
/* The shadow a card takes as it turns edge-on */
--kz-image-split-cards-shade: #0a0a0a;
--kz-image-split-cards-mono: var(--kz-font-mono, "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace);
position: relative;
display: block;
container-type: inline-size;
color: var(--kz-image-split-cards-ink);
}
/* The head and the cards. Once the script runs, it holds the screen while the section scrolls by */
.kodza-image-split-cards__stage {
box-sizing: border-box;
display: grid;
gap: clamp(32px, 6svh, 56px);
width: min(var(--kz-image-split-cards-width), 100% - 2 * var(--kz-image-split-cards-gutter));
/* Centred like margin: auto, but worked out: Chrome can report a stale 0 for auto right after
kodza:init, and the theme bench reads it as a theme taking the margin */
margin-inline: max(var(--kz-image-split-cards-gutter), (100% - var(--kz-image-split-cards-width)) / 2);
}
.kodza-image-split-cards__head {
display: grid;
gap: 14px;
}
.kodza-image-split-cards__label {
margin: 0;
color: var(--kz-image-split-cards-muted);
font-family: var(--kz-font-label, var(--kz-image-split-cards-mono));
font-size: var(--kz-font-label-size, 12.5px);
font-weight: var(--kz-font-label-weight, 500);
line-height: var(--kz-font-label-leading, 1.4);
letter-spacing: var(--kz-font-label-tracking, 0.02em);
text-transform: var(--kz-font-label-case, inherit);
}
.kodza-image-split-cards__heading {
max-width: 16em;
margin: 0;
color: inherit;
font-family: var(--kz-font-display, inherit);
font-size: calc(clamp(28px, 4.2cqi, 48px) * var(--kz-font-display-scale, 1));
font-weight: var(--kz-font-display-weight, 600);
line-height: 1.04;
letter-spacing: var(--kz-font-display-tracking, -0.045em);
text-transform: var(--kz-font-display-case, inherit);
text-wrap: balance;
}
.kodza-image-split-cards__deck {
display: grid;
gap: var(--kz-image-split-cards-gap);
}
/* At rest (no script, reduced motion): the picture above the cards */
.kodza-image-split-cards__image {
display: block;
width: 100%;
max-width: none;
height: clamp(200px, 30cqi, 360px);
margin: 0;
border-radius: var(--kz-image-split-cards-radius);
object-fit: cover;
object-position: var(--kz-image-split-cards-position);
}
.kodza-image-split-cards__list {
display: grid;
grid-auto-columns: minmax(0, 1fr);
grid-auto-flow: column;
gap: var(--kz-image-split-cards-gap);
margin: 0;
padding: 0;
list-style: none;
}
/* A card: the list item itself until the script runs, then its back face */
.kodza-image-split-cards:not(.is-ready) .kodza-image-split-cards__card,
.kodza-image-split-cards__back {
box-sizing: border-box;
position: relative;
display: flex;
flex-direction: column;
gap: 10px;
min-height: 220px;
margin: 0;
padding: 28px;
border: 1px solid var(--kz-image-split-cards-border);
border-radius: var(--kz-image-split-cards-radius);
background: var(--kz-image-split-cards-surface);
}
.kodza-image-split-cards__card {
position: relative;
display: grid;
margin: 0;
padding: 0;
}
.kodza-image-split-cards__index {
color: var(--kz-image-split-cards-muted);
font-family: var(--kz-font-label, var(--kz-image-split-cards-mono));
font-size: var(--kz-font-label-size, 12.5px);
font-weight: var(--kz-font-label-weight, 500);
line-height: var(--kz-font-label-leading, 1.4);
letter-spacing: var(--kz-font-label-tracking, 0.02em);
text-transform: var(--kz-font-label-case, inherit);
}
/* The title and the text sit at the bottom of the card, the number at the top */
.kodza-image-split-cards__title {
margin: auto 0 0;
padding-top: 24px;
color: inherit;
font-family: inherit;
font-size: 22px;
font-weight: 600;
line-height: 1.2;
letter-spacing: -0.02em;
text-wrap: balance;
}
.kodza-image-split-cards__text {
max-width: 30em;
margin: 0;
color: var(--kz-image-split-cards-muted);
font-size: 15px;
line-height: 1.55;
text-wrap: pretty;
}
.kodza-image-split-cards__text code {
color: var(--kz-image-split-cards-ink);
font-family: var(--kz-font-mono, var(--kz-image-split-cards-mono));
font-size: 0.92em;
}
/* Running: the section is a track, the stage sticks while the scroll runs through it */
.kodza-image-split-cards.is-live::after {
content: "";
display: block;
height: var(--kz-image-split-cards-distance);
}
.kodza-image-split-cards.is-live .kodza-image-split-cards__stage {
position: sticky;
top: 0;
align-content: center;
min-height: 100svh;
padding-block: clamp(24px, 6svh, 64px);
}
.kodza-image-split-cards.is-live .kodza-image-split-cards__list {
grid-auto-rows: var(--kz-image-split-cards-height);
}
/* Each card turns in 3D: two faces in one cell, each hiding its back */
.kodza-image-split-cards.is-live .kodza-image-split-cards__card {
transform-style: preserve-3d;
will-change: transform;
}
.kodza-image-split-cards__front,
.kodza-image-split-cards.is-live .kodza-image-split-cards__back {
grid-area: 1 / 1;
min-height: 0;
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
}
/* The front: the picture, offset so each card shows its own slice. The inner corners stay square
while the pieces touch, and round off as they part (--kz-image-split-cards-split, 0 to 1) */
.kodza-image-split-cards__front {
--kz-image-split-cards-inner: calc(var(--kz-image-split-cards-radius) * var(--kz-image-split-cards-split, 1));
position: relative;
overflow: hidden;
border-radius: var(--kz-image-split-cards-inner);
background: var(--kz-image-split-cards-border);
}
.kodza-image-split-cards__card:first-child .kodza-image-split-cards__front {
border-radius: var(--kz-image-split-cards-radius) var(--kz-image-split-cards-inner) var(--kz-image-split-cards-inner) var(--kz-image-split-cards-radius);
}
.kodza-image-split-cards__card:last-child .kodza-image-split-cards__front {
border-radius: var(--kz-image-split-cards-inner) var(--kz-image-split-cards-radius) var(--kz-image-split-cards-radius) var(--kz-image-split-cards-inner);
}
.kodza-image-split-cards__front .kodza-image-split-cards__image {
position: absolute;
top: 0;
left: calc(var(--kz-image-split-cards-i, 0) * -100%);
width: calc(var(--kz-image-split-cards-n, 3) * 100%);
height: 100%;
border-radius: 0;
}
/* The back starts turned away, the way the card turns */
.kodza-image-split-cards.is-live .kodza-image-split-cards__back {
transform: rotateY(180deg);
}
/* The text arrives once its side faces you (--kz-image-split-cards-reveal, 0 to 1) */
.kodza-image-split-cards.is-live .kodza-image-split-cards__back > * {
opacity: var(--kz-image-split-cards-reveal, 1);
transform: translateY(calc((1 - var(--kz-image-split-cards-reveal, 1)) * 14px));
}
/* Edge-on, a card falls into shadow (--kz-image-split-cards-turn, 0 to about 0.3) */
.kodza-image-split-cards__front::after,
.kodza-image-split-cards.is-live .kodza-image-split-cards__back::after {
content: "";
position: absolute;
inset: 0;
border-radius: inherit;
background: var(--kz-image-split-cards-shade);
opacity: var(--kz-image-split-cards-turn, 0);
pointer-events: none;
}
/* Stacked, in a narrow section: the picture is cut across, and the cards turn top over bottom */
@container (max-width: 639.98px) {
.kodza-image-split-cards__list {
grid-auto-columns: auto;
grid-auto-flow: row;
}
.kodza-image-split-cards__back {
min-height: 0;
padding: 22px;
}
.kodza-image-split-cards__title {
padding-top: 14px;
font-size: 20px;
}
.kodza-image-split-cards.is-live .kodza-image-split-cards__list {
grid-auto-rows: minmax(var(--kz-image-split-cards-height-stacked), 1fr);
}
}
.kodza-image-split-cards.is-stacked .kodza-image-split-cards__card:first-child .kodza-image-split-cards__front {
border-radius: var(--kz-image-split-cards-radius) var(--kz-image-split-cards-radius) var(--kz-image-split-cards-inner) var(--kz-image-split-cards-inner);
}
.kodza-image-split-cards.is-stacked .kodza-image-split-cards__card:last-child .kodza-image-split-cards__front {
border-radius: var(--kz-image-split-cards-inner) var(--kz-image-split-cards-inner) var(--kz-image-split-cards-radius) var(--kz-image-split-cards-radius);
}
.kodza-image-split-cards.is-stacked .kodza-image-split-cards__front .kodza-image-split-cards__image {
top: calc(var(--kz-image-split-cards-i, 0) * -100%);
left: 0;
width: 100%;
height: calc(var(--kz-image-split-cards-n, 3) * 100%);
}
.kodza-image-split-cards.is-live.is-stacked .kodza-image-split-cards__back {
transform: rotateX(180deg);
}
/* kodza-guard 6aba800268dc — 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-image-split-cards__card):not(#_) {
border: revert;
border-radius: revert;
box-sizing: revert;
background-color: revert;
background-image: revert;
}
/* What the browser gives, on everything the component leaves to it */
.kodza-image-split-cards:not(#_),
.kodza-image-split-cards__head:not(#_),
.kodza-image-split-cards__deck:not(#_),
.kodza-image-split-cards__front:not(#_),
.kodza-image-split-cards__index:not(#_) {
box-sizing: revert;
}
.kodza-image-split-cards__label: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;
font-style: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-image-split-cards__heading: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-height: revert;
font-style: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-image-split-cards__list:not(#_) {
border: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
transition: 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-image-split-cards__card:not(#_) {
outline: revert;
text-decoration: revert;
transition: revert;
list-style: revert;
float: 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-image-split-cards__image:not(#_) {
border: revert;
padding: revert;
outline: revert;
text-decoration: revert;
transition: revert;
list-style: revert;
box-sizing: revert;
float: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: 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-image-split-cards__title:not(#_) {
border: revert;
border-radius: revert;
outline: revert;
text-decoration: revert;
transition: revert;
list-style: revert;
box-sizing: revert;
float: revert;
position: revert;
padding-right: revert;
padding-bottom: revert;
padding-left: revert;
background-color: revert;
background-image: revert;
box-shadow: revert;
outline-offset: revert;
appearance: revert;
max-width: revert;
max-height: revert;
font-style: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-image-split-cards__text: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-height: revert;
font-family: revert;
font-weight: revert;
font-style: revert;
letter-spacing: revert;
text-transform: revert;
text-underline-offset: revert;
text-align: revert;
text-indent: revert;
text-shadow: revert;
vertical-align: revert;
}
.kodza-image-split-cards__text code:where(:not([class*="kodza-"])):not(#_) {
border: revert;
margin: 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;
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-image-split-cards__label:not(#_):where(:not([hidden])),
.kodza-image-split-cards__heading:not(#_):where(:not([hidden])),
.kodza-image-split-cards__title:not(#_):where(:not([hidden])),
.kodza-image-split-cards__text:not(#_):where(:not([hidden])),
.kodza-image-split-cards__text code:where(:not([class*="kodza-"])):not(#_):where(:not([hidden])) {
display: revert;
}
.kodza-image-split-cards__label:not(#_):where([hidden]),
.kodza-image-split-cards__heading:not(#_):where([hidden]),
.kodza-image-split-cards__title:not(#_):where([hidden]),
.kodza-image-split-cards__text:not(#_):where([hidden]),
.kodza-image-split-cards__text code:where(:not([class*="kodza-"])):not(#_):where([hidden]) {
display: none;
}
.kodza-image-split-cards:not(#_)::after,
.kodza-image-split-cards__front:not(#_)::after,
.kodza-image-split-cards__back:not(#_)::after {
box-sizing: revert;
}
/* 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-image-split-cards__label:not(#_) {
margin: 0;
color: var(--kz-image-split-cards-muted);
font-family: var(--kz-font-label, var(--kz-image-split-cards-mono));
font-size: var(--kz-font-label-size, 12.5px);
font-weight: var(--kz-font-label-weight, 500);
line-height: var(--kz-font-label-leading, 1.4);
letter-spacing: var(--kz-font-label-tracking, 0.02em);
text-transform: var(--kz-font-label-case, inherit);
}
.kodza-image-split-cards__heading:not(#_) {
max-width: 16em;
margin: 0;
color: inherit;
font-family: var(--kz-font-display, inherit);
font-size: calc(clamp(28px, 4.2cqi, 48px) * var(--kz-font-display-scale, 1));
font-weight: var(--kz-font-display-weight, 600);
line-height: 1.04;
letter-spacing: var(--kz-font-display-tracking, -0.045em);
text-transform: var(--kz-font-display-case, inherit);
}
.kodza-image-split-cards__image:not(#_) {
display: block;
max-width: none;
margin: 0;
border-radius: var(--kz-image-split-cards-radius);
}
.kodza-image-split-cards__list:not(#_) {
display: grid;
margin: 0;
padding: 0;
list-style: none;
}
.kodza-image-split-cards:not(.is-ready) .kodza-image-split-cards__card:not(#_) {
box-sizing: border-box;
position: relative;
display: flex;
margin: 0;
padding: 28px;
border: 1px solid var(--kz-image-split-cards-border);
border-radius: var(--kz-image-split-cards-radius);
background: var(--kz-image-split-cards-surface);
}
.kodza-image-split-cards__card:not(#_) {
position: relative;
display: grid;
margin: 0;
padding: 0;
}
.kodza-image-split-cards__title:not(#_) {
margin: auto 0 0;
padding-top: 24px;
color: inherit;
font-family: inherit;
font-size: 22px;
font-weight: 600;
line-height: 1.2;
letter-spacing: -0.02em;
}
.kodza-image-split-cards__text:not(#_) {
max-width: 30em;
margin: 0;
color: var(--kz-image-split-cards-muted);
font-size: 15px;
line-height: 1.55;
}
.kodza-image-split-cards__text code:not(#_) {
color: var(--kz-image-split-cards-ink);
font-family: var(--kz-font-mono, var(--kz-image-split-cards-mono));
font-size: 0.92em;
}
.kodza-image-split-cards__front .kodza-image-split-cards__image:not(#_) {
position: absolute;
border-radius: 0;
}
@container (max-width: 639.98px) {
.kodza-image-split-cards__title:not(#_) {
padding-top: 14px;
font-size: 20px;
}
}// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Kodza — Image Split Cards
// The section becomes a track: its stage sticks in the middle of the screen while the scroll runs
// through it, and the script writes two things from that scroll. First how far the pieces have
// parted (the picture splits along the gaps, the inner corners round off), then each card's turn,
// one after the other, with a little lift and shade, its text arriving once it faces you. The
// pacing is in the constants below. Reduced motion, or a site pace of 0: the picture sits above
// the cards, which show their text, and nothing turns.
(() => {
const SELECTOR = '[data-kodza-image-split-cards]';
// The track starts once the section's top is this far down the screen (a share of its height):
// the pieces start parting as the stage settles, not after
const LEAD = 0.2;
// Share of the track the pieces take to part
const SPLIT = 0.22;
// When the first card starts turning, and when the last one lies flat: the rest of the track is
// a short hold, to read the last card before the section moves on
const TURN_FROM = 0.18;
const TURN_TO = 0.92;
// Share of the track one turn takes. Longer than the step between two cards, so they overlap
const TURN = 0.34;
// The depth of the turn (CSS perspective, px), how much a card grows halfway through it, and how
// dark it gets edge-on
const PERSPECTIVE = 1200;
const LIFT = 0.04;
const SHADE = 0.32;
// At rest the pieces overlap by this much (px): edges that meet on a fraction of a pixel would let
// a hairline of the page show between them
const SEAM = 1;
// How long the cards take to catch up with the scroll, in ms (times the site's pace): a soft
// follow instead of cards glued to the wheel. 0 glues them
const SMOOTHING = 120;
// The progress left to travel below this ends the loop
const SETTLE = 0.0005;
const reduceMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
// The site's pace, --kz-motion-scale (set on :root, read on the instance): every duration of the
// script times it, and 0 moves nothing, like reduced motion
const paceOf = (el) => {
const pace = parseFloat(getComputedStyle(el).getPropertyValue('--kz-motion-scale'));
return pace >= 0 ? pace : 1;
};
const clamp = (value, min, max) => Math.min(max, Math.max(min, value));
// Slow off the mark, slow into place
const ease = (t) => (t < 0.5 ? 4 * t * t * t : 1 - (-2 * t + 2) ** 3 / 2);
// One instance, with its own state: two copies on a page never interfere. Everything it
// starts is tied to `signal` (listeners get { signal }, observers and timers stop on its
// 'abort' event), so kodza:destroy stops it all.
function mount(root, signal) {
const stage = root.querySelector('.kodza-image-split-cards__stage');
const image = root.querySelector('.kodza-image-split-cards__image');
const cards = [...root.querySelectorAll('.kodza-image-split-cards__card')];
if (!stage || !cards.length) return;
// Each card's content goes into its back face, the side that turns up
cards.forEach((card) => {
const back = document.createElement('div');
back.className = 'kodza-image-split-cards__back';
back.append(...card.childNodes);
card.append(back);
});
const pace = paceOf(root);
const still = reduceMotion || !pace; // the still path: no motion asked, by the visitor or the site
if (still || !image || cards.length < 2) return;
const smoothing = SMOOTHING * pace;
const count = cards.length;
const step = (TURN_TO - TURN_FROM - TURN) / (count - 1);
// Each card gets a front face with the picture, offset to show its own slice: the first one
// takes the image as written (and its alt), the others a silent copy
root.style.setProperty('--kz-image-split-cards-n', count);
cards.forEach((card, index) => {
const front = document.createElement('div');
front.className = 'kodza-image-split-cards__front';
const slice = index ? image.cloneNode() : image;
if (index) {
slice.alt = '';
slice.setAttribute('aria-hidden', 'true');
}
front.append(slice);
card.style.setProperty('--kz-image-split-cards-i', index);
card.prepend(front);
});
root.classList.add('is-live');
let stacked = false;
let gap = 0;
let top = 0; // where the stage sticks: 0, or above the screen when it is taller than it
let current = null; // the progress written now
let raf = 0;
let last = 0;
let shown = false;
// Side by side or stacked, and the gap to close at rest. Read in layout pixels, which the
// cards' own transforms (and a scaled parent) leave alone
const measure = () => {
const [first, second] = cards;
stacked = second.offsetTop > first.offsetTop + first.offsetHeight / 2;
root.classList.toggle('is-stacked', stacked);
gap = stacked
? second.offsetTop - first.offsetTop - first.offsetHeight
: second.offsetLeft - first.offsetLeft - first.offsetWidth;
// A stage taller than the screen sticks by its bottom edge, so all of it shows
stage.style.top = '';
top = Math.min(0, innerHeight - stage.getBoundingClientRect().height);
stage.style.top = `${top}px`;
};
// The track: 0 once the section's top is LEAD down the screen, 1 as the stage lets go. A section
// that already sits higher than that on load (it opens the page) starts whole, at the top
const lead = () => Math.min(innerHeight * LEAD, Math.max(0, root.getBoundingClientRect().top + scrollY));
const span = () => root.getBoundingClientRect().height - stage.getBoundingClientRect().height + lead() - top;
const goal = () => clamp((lead() - root.getBoundingClientRect().top) / span(), 0, 1);
const write = () => {
const split = ease(clamp(current / SPLIT, 0, 1));
root.style.setProperty('--kz-image-split-cards-split', split.toFixed(4));
cards.forEach((card, index) => {
// At rest the pieces close the gaps around the middle one, so the picture reads whole
const shift = (gap + SEAM) * ((count - 1) / 2 - index) * (1 - split);
const turn = ease(clamp((current - TURN_FROM - index * step) / TURN, 0, 1));
const angle = 180 * turn;
const arc = Math.sin(turn * Math.PI);
const move = stacked ? `translate3d(0, ${shift.toFixed(2)}px, 0)` : `translate3d(${shift.toFixed(2)}px, 0, 0)`;
const rotate = stacked ? `rotateX(${(-angle).toFixed(2)}deg)` : `rotateY(${angle.toFixed(2)}deg)`;
card.style.transform = `${move} perspective(${PERSPECTIVE}px) ${rotate} scale(${(1 + LIFT * arc).toFixed(4)})`;
card.style.setProperty('--kz-image-split-cards-turn', (SHADE * arc).toFixed(3));
card.style.setProperty('--kz-image-split-cards-reveal', clamp((angle - 100) / 70, 0, 1).toFixed(3));
});
};
const tick = (now) => {
raf = 0;
const to = goal();
const frame = last ? Math.min(now - last, 64) : 16.7;
last = now;
if (current === null || !smoothing) current = to;
else current += (to - current) * (1 - Math.exp(-frame / smoothing));
if (Math.abs(to - current) < SETTLE) current = to;
write();
if (current !== to) raf = requestAnimationFrame(tick);
else last = 0;
};
const queue = () => {
if (!shown || raf) return;
raf = requestAnimationFrame(tick);
};
const place = () => {
current = goal();
write();
};
// Placed before it first shows, so nothing turns in front of you on load
measure();
place();
// Focus landing in a card that has not turned yet (a link in its text, from the keyboard):
// the page scrolls to where that card faces you
root.addEventListener('focusin', (event) => {
const index = cards.findIndex((card) => card.contains(event.target));
const end = TURN_FROM + index * step + TURN;
if (index < 0 || current >= end) return;
window.scrollTo({ top: scrollY + root.getBoundingClientRect().top - lead() + end * span(), behavior: 'instant' });
place();
}, { signal });
const io = new IntersectionObserver(([entry]) => {
shown = entry.isIntersecting;
if (shown) place(); // back on screen after a jump (an anchor, Home): placed, not chased
});
io.observe(root);
const resize = new ResizeObserver(() => {
measure();
queue();
});
resize.observe(stage);
window.addEventListener('scroll', queue, { passive: true, signal });
window.addEventListener('resize', () => {
measure();
queue();
}, { signal });
signal.addEventListener('abort', () => {
io.disconnect();
resize.disconnect();
cancelAnimationFrame(raf);
});
}
// 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. Each running root
// keeps its markup as written under KODZA, shared by every Kodza script on the page: a Kodza
// component inside another one is saved as written, not half-started, and stopped with it. Two
// components on one root (a reveal on a stat card) both start, and stop together.
const KODZA = Symbol.for('kodza');
const RUNNING = Symbol.for(`kodza ${SELECTOR}`); // a root this component runs on, for every copy of this script
const instances = new WeakMap();
const find = (scope = document) => [scope, ...scope.querySelectorAll(SELECTOR)].filter((el) => el.matches?.(SELECTOR));
const attrsOf = (el) => [...el.attributes].map((a) => [a.name, a.value]);
const put = (el, saved) => {
[...el.attributes].forEach((a) => el.removeAttribute(a.name));
saved.attrs.forEach(([name, value]) => el.setAttribute(name, value));
el.innerHTML = saved.html;
};
// The markup inside a root as written: Kodza components already running in it give back their own
const written = (root) => {
const all = [...root.querySelectorAll('*')];
if (!all.some((el) => el[KODZA])) return root.innerHTML;
const copy = root.cloneNode(true);
const twins = copy.querySelectorAll('*');
let last = null;
all.forEach((el, i) => {
if (!el[KODZA] || last?.contains(el)) return;
last = el;
put(twins[i], el[KODZA]);
});
return copy.innerHTML;
};
const init = (scope) => find(scope).forEach((root) => {
// Already running, maybe from another copy of this script. Marked is-ready with no Kodza component
// running on it, a root is a copy of a started one (a cloned slide): it is left as it is
if (root[RUNNING] || (root.classList.contains('is-ready') && !root[KODZA])) return;
// Rendered by React (data-kodza-manual): React starts it, with an init aimed at that markup once
// it has hydrated it. Any earlier start would change markup React has not taken over yet
const owner = root.closest('[data-kodza-manual]');
if (owner && !(scope && owner.contains(scope))) return;
const controller = new AbortController();
// Another Kodza component already running on this root: its markup as written is kept, and the
// two stop together
const before = root[KODZA];
const saved = { html: before ? before.html : written(root), attrs: before ? before.attrs : attrsOf(root), stop: () => destroy(root) };
if (before) before.above = saved;
instances.set(root, { controller, saved, before });
root[KODZA] = saved;
root[RUNNING] = true;
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.saved.above?.stop(); // a Kodza component started after it on the same root stops first
// The Kodza components running inside it stop first: once its markup is put back, their own
// script could not find them any more
root.querySelectorAll('*').forEach((el) => el[KODZA]?.stop());
instance.controller.abort();
delete root[RUNNING];
// Started on top of another one: that one stops next, and puts the markup back
if (instance.before) {
delete instance.before.above;
root[KODZA] = instance.before;
return instance.before.stop();
}
delete root[KODZA];
put(root, instance.saved);
});
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 — Image Split Cards, for React. From https://kodza.dev/components/image-split-cards/
// 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: image-split-cards.css and image-split-cards.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.
// data-kodza-manual keeps the script from starting it on its own: the effect below does, once
// React has hydrated the markup (on a page that streams in, the script can load first).
// Built from your data (tabs, rows, options)? Put what the markup is made of in the key, as plain
// values (ids, text, numbers): a change starts the script again on fresh markup. What the visitor
// changes (the open tab, the sort, what they type) is the script's: keep it out of the key, follow
// it with onClick or onInput on the root, and change it from your code as a visitor would (click
// the tab; set the field's value, then dispatch a bubbling input event).
import { useRef, useEffect, type ComponentPropsWithoutRef, type ComponentRef, type CSSProperties } from 'react';
import './image-split-cards.css';
export type ImageSplitCardsProps = Omit<ComponentPropsWithoutRef<'div'>, "children" | "vars"> & {
/** Settings, as CSS variables on the root */
vars?: {
/** default: 1080px */
"--kz-image-split-cards-width"?: string | number;
/** default: 24px */
"--kz-image-split-cards-gutter"?: string | number;
/** default: 16px */
"--kz-image-split-cards-gap"?: string | number;
/** default: clamp(300px, 52svh, 440px) */
"--kz-image-split-cards-height"?: string | number;
/** default: clamp(150px, 21svh, 200px) */
"--kz-image-split-cards-height-stacked"?: string | number;
/** default: 150svh */
"--kz-image-split-cards-distance"?: string | number;
/** default: 50% 50% */
"--kz-image-split-cards-position"?: string | number;
/** default: calc(16px * var(--kz-radius-scale, 1)) */
"--kz-image-split-cards-radius"?: string | number;
/** default: var(--kz-color-ink, #0a0a0a) */
"--kz-image-split-cards-ink"?: string | number;
/** default: color-mix(in srgb, var(--kz-image-split-cards-ink) 62%, transparent) */
"--kz-image-split-cards-muted"?: string | number;
/** default: var(--kz-color-paper, #ffffff) */
"--kz-image-split-cards-surface"?: string | number;
/** default: color-mix(in srgb, var(--kz-image-split-cards-ink) 10%, transparent) */
"--kz-image-split-cards-border"?: string | number;
/** default: #0a0a0a */
"--kz-image-split-cards-shade"?: string | number;
/** default: var(--kz-font-mono, "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace) */
"--kz-image-split-cards-mono"?: string | number;
};
className?: string;
};
export function ImageSplitCards({ vars, className, style, ...rest }: ImageSplitCardsProps) {
const ref = useRef<ComponentRef<'div'>>(null);
const classes = ["kodza-image-split-cards", 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, 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('./image-split-cards.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 data-kodza-image-split-cards="" key={key} {...rest} className={classes} data-kodza-manual style={{ ...vars, ...style } as CSSProperties} ref={ref}>
<div className="kodza-image-split-cards__stage">
<div className="kodza-image-split-cards__head">
<p className="kodza-image-split-cards__label">Why teams switch</p>
<h2 className="kodza-image-split-cards__heading">Three reasons to stop babysitting your deploys.</h2>
</div>
<div className="kodza-image-split-cards__deck">
<img className="kodza-image-split-cards__image" src="https://kodza.dev/media/kz-repeat-1400.webp" srcSet="https://kodza.dev/media/kz-repeat-1400.webp 1400w, https://kodza.dev/media/kz-repeat-2400.webp 2400w" sizes="(max-width: 640px) 100vw, 1080px" alt="A concrete wall cut into a grid of deep square windows" width="1400" height="933" loading="lazy" />
<ol className="kodza-image-split-cards__list">
<li className="kodza-image-split-cards__card">
<span className="kodza-image-split-cards__index" aria-hidden="true">01</span>
<h3 className="kodza-image-split-cards__title">One command</h3>
<p className="kodza-image-split-cards__text"><code>quay ship</code> builds, tests and deploys. No YAML copied from a 2019 blog post.</p>
</li>
<li className="kodza-image-split-cards__card">
<span className="kodza-image-split-cards__index" aria-hidden="true">02</span>
<h3 className="kodza-image-split-cards__title">Rollbacks that roll back</h3>
<p className="kodza-image-split-cards__text">Every release keeps its build. Going back takes four seconds, not a hotfix at midnight.</p>
</li>
<li className="kodza-image-split-cards__card">
<span className="kodza-image-split-cards__index" aria-hidden="true">03</span>
<h3 className="kodza-image-split-cards__title">Logs a human can read</h3>
<p className="kodza-image-split-cards__text">The line that broke is the first one you see. Not line 4,812 of a stack trace.</p>
</li>
</ol>
</div>
</div>
</div>
);
}Checked
Checked before you paste.
Robots poked at it before you did. Every component goes through the same checks, and again each time it changes.
What ranLast run
Accessibilityaxe-core 4.10.2: the WCAG 2.1 A and AA rules, plus best practices.
0 issues
KeyboardThe Tab key gets there, and the focus ring shows when it does.
Passed
Reduced motionTurn on reduced motion and what moved just appears. Nothing loops.
Passed
Light and darkThe same checks on both themes, contrast included.
Passed
WordPressPasted into Twenty Twenty-Five, Twenty Twenty-One, Astra, Blocksy, GeneratePress, Hello Elementor, Kadence and OceanWP. Nothing to flag.
8 / 8 themes
Robots checked this. A human with VoiceOver hasn't yet.
Media Expand
An image or a video in a rounded frame, set in from the edges, takes the full width as the scroll brings it to the middle of the screen. The corners square off, the caption rises, and it all reverses on the way back up.
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Reading Progress
A thin line under the header that fills as you read the article, not the whole page. Cut at each section, it can show the minutes left, and runs on the scroll itself where the browser can.
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Scroll Sequence
A numbered series of pictures drawn on one canvas as the scroll runs through a section that holds the screen. Captions come in on cue, and the frames load coarse to fine: a fast scroll never shows a blank.
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Section Tone Shift
The page turns from paper to ink as a marked section takes the middle of the screen, the colour following the scroll. The text changes side halfway, and an event tells your header.
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Scroll Gauge
A figure pinned in a corner of a long page. Each section carries its value, and as you read, the figure rolls to it digit by digit, with its unit, a note and a scale of the whole story.
View code