# Hero Split

> A split hero, words on the left and a 4:5 picture on the right: the title lines rise out of their masks while the picture opens from the top edge down.

Hero · hero, section, landing, entrance, split · HTML, CSS, vanilla JS · no dependencies · updated 2026-10-20
Demo: https://kodza.dev/components/hero-split/

## Files

The code below, served as files: byte for byte what the Kodza site copies (the CSS includes its theme guard).

- [`kodza-hero-split.css`](https://kodza.dev/registry/hero-split/kodza-hero-split.css) · 15.8 KB
- [`kodza-hero-split.js`](https://kodza.dev/registry/hero-split/kodza-hero-split.js) · 4.8 KB
- [`kodza-hero-split.html`](https://kodza.dev/registry/hero-split/kodza-hero-split.html) · 1.4 KB · the markup, to adapt and paste into your page

**Can you run shell commands? Download the CSS and the JS, don't retype them.** Retyping costs thousands of tokens and can drop or change lines of the CSS. Put the files where your stack expects them (Use it says where: change the `-o` paths):

```bash
curl -fsSL --create-dirs -o kodza/kodza-hero-split.css https://kodza.dev/registry/hero-split/kodza-hero-split.css
curl -fsSL --create-dirs -o kodza/kodza-hero-split.js https://kodza.dev/registry/hero-split/kodza-hero-split.js
```

Then load the files from your page as Use it shows, instead of pasting the content. The HTML is the part you adapt (text, links, modifiers): paste it from the Code section. Copy the CSS and the JS from the Code section only if you can't run commands, exactly as they are. (Windows PowerShell: `curl.exe`.)

## API

- Root: `.kodza-hero-split`
- Variables (set them on the root element itself: it declares its own defaults):
  - `--kz-hero-split-ink: #0a0a0a`
  - `--kz-hero-split-paper: #f2f2f0`
  - `--kz-hero-split-dim: rgba(10, 10, 10, 0.62)`
  - `--kz-hero-split-faint: rgba(10, 10, 10, 0.6)`
  - `--kz-hero-split-soft: rgba(10, 10, 10, 0.07)`
  - `--kz-hero-split-bg: transparent`
  - `--kz-hero-split-width: 1240px`
  - `--kz-hero-split-gap: clamp(32px, 5vw, 80px)`
  - `--kz-hero-split-pad-y: clamp(72px, 9vw, 140px)`
  - `--kz-hero-split-gutter: clamp(16px, 4vw, 40px)`
  - `--kz-hero-split-radius: 16px`
  - `--kz-hero-split-ratio: 4 / 5`
  - `--kz-hero-split-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace`
  - `--kz-hero-split-ease: cubic-bezier(0.22, 1, 0.36, 1)`
- Lifecycle: `kodza:init` / `kodza:destroy` on `document`, with `{ detail: { root } }` to target a container.

## Dark mode

The values Kodza uses on a dark background (`#0a0a0a`). For a page that follows the system theme, add them after the component's CSS:

```css
@media (prefers-color-scheme: dark) {
  .kodza-hero-split {
    --kz-hero-split-ink: #f2f2f0;
    --kz-hero-split-paper: #0a0a0a;
    --kz-hero-split-dim: rgba(242, 242, 240, 0.64);
    --kz-hero-split-faint: rgba(242, 242, 240, 0.5);
    --kz-hero-split-soft: rgba(242, 242, 240, 0.1);
  }
}
```

A site with its own theme switch puts the same rules under its dark selector instead (`[data-theme="dark"] .kodza-hero-split { … }`); a single dark section, under that section's class.

Its images have dark versions next to them (`kz-block-1400.webp` → `kz-block-dark-1400.webp`). To swap them on a dark page: `<picture><source media="(prefers-color-scheme: dark)" srcset="…-dark-….webp"><img …></picture>`.

## Use it

### Plain HTML page

- CSS: `kodza/kodza-hero-split.css` next to the page (the Files commands as they are), linked in `<head>`: `<link rel="stylesheet" href="kodza/kodza-hero-split.css">`. Without a shell, paste it in a `<style>` in `<head>` instead. It only touches `kodza-` classes.
- HTML: where the component goes. Paste it as many times as you need: instances never interfere.
- JS: `kodza/kodza-hero-split.js`, loaded with `<script src="kodza/kodza-hero-split.js" defer></script>` in `<head>`. Without a shell, paste it in a `<script>` before `</body>` (or in `<head>`: it waits for the page). One copy per page, whatever the number of instances.
- Restyle with the `--kz-…` variables, set on the component's root element itself (the root declares its own defaults, so a value on an ancestor is ignored), and with the modifiers / attributes listed under API.
- Font: it takes the page's own. The Kodza look is Geist: `<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap">`.
- Content added later (AJAX navigation, a SPA route, a builder preview): start it with `document.dispatchEvent(new CustomEvent('kodza:init', { detail: { root: container } }))`; before removing it, the same call with `'kodza:destroy'` stops it and puts the original markup back.

### Claude artifact (claude.ai)

- Paste the CSS in a `<style>` and the JS in a `<script>` at the end, in the artifact itself: it loads stylesheets only from Google Fonts and scripts only from a few CDNs, so no `<link>` or `<script src>` to Kodza.
- Writing the artifact file with a shell? Insert the downloaded files (Files) with a command instead of retyping them: a line `KODZA-CSS` alone inside the `<style>`, `KODZA-JS` inside the `<script>`, then `sed -e '/^KODZA-CSS$/{r kodza/kodza-hero-split.css' -e 'd' -e '}' -e '/^KODZA-JS$/{r kodza/kodza-hero-split.js' -e 'd' -e '}' page.html > artifact.html`.
- Font: load Geist from Google Fonts (allowed): `<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap">`.
- Images: the artifact blocks every other host, `kodza.dev` included, without an error. Embed each one as a `data:` URI, with a command if you can run one (`curl -s <url> | base64`; the 1400 px files weigh 10 to 30 KB), never by typing base64 out. If you can't run commands, keep the `<img>` with its `width` and `height`, and tell the user the picture stays blank inside the artifact.
- Dark mode: the viewer sets `data-theme="dark"` or `"light"` on `<html>`, or nothing when it follows the system. Write the Dark mode rules twice: inside `@media (prefers-color-scheme: dark)` with `:root:not([data-theme="light"])` in front of each selector, and with `:root[data-theme="dark"]` in front of each selector.

### WordPress

- HTML: a **Custom HTML** block (or a pattern / template part). WordPress keeps this markup as it is only for users allowed to post unfiltered HTML (Administrators; Super Admins on multisite): for anyone else it strips tags such as `<svg>`, `<input>` or `<dialog>`, so add it from the theme (a pattern or template part) instead.
- This one spans the page: a block theme keeps a Custom HTML block to the width of the text column, so put it inside a **Group** block set to **Full width**, with **Inner blocks use content width** turned off.
- CSS and JS: the downloaded files go in the theme, under `wp-content/themes/<your-theme>/kodza/` (the child theme if there is one), enqueued from its functions.php (or a code-snippets plugin):
  ```php
  add_action('wp_enqueue_scripts', function () {
    $dir = get_stylesheet_directory() . '/kodza/';
    $uri = get_stylesheet_directory_uri() . '/kodza/';
    wp_enqueue_style('kodza-hero-split', $uri . 'kodza-hero-split.css', [], filemtime($dir . 'kodza-hero-split.css'));
    wp_enqueue_script('kodza-hero-split', $uri . 'kodza-hero-split.js', [], filemtime($dir . 'kodza-hero-split.js'), true);
  });
  ```
  Scoped to `kodza-` classes, the CSS never touches the theme. One copy of the JS, whatever the number of blocks.
- No access to the theme files? The CSS can also go, as it is, in **Appearance → Customize → Additional CSS** (classic theme) or **Styles → Additional CSS** in the Site Editor (block theme).
- Theme with AJAX page transitions: fire `kodza:init` on the new content after each swap (and `kodza:destroy` on the old one).
- Performance plugin (WP Rocket, LiteSpeed Cache, Perfmatters…) with **Delay JavaScript execution** turned on: add `kodza` to the scripts it must not delay. Otherwise the component waits for the visitor's first scroll, tap or mouse move, and that first click can be lost.
- Colours: it takes the colour of the text around it (or keeps its own monochrome): nothing to point at the theme.
- WordPress turns straight quotes and `--` into typographic ones in the text of a Custom HTML block (not inside `<code>` or `<pre>`).

#### With Elementor

- HTML: an **HTML** widget (Elementor shows it to administrators only). It keeps the code exactly as pasted, straight quotes included.
- This one spans the page: give the widget its own container, **Content Width: Full Width**, padding 0.
- CSS and JS: as above. Elementor's Site Settings → Theme Style styles every button, field, link and image of the page, components included; the theme guard at the end of the CSS keeps the component's buttons, fields and link colours as they are.
- The Elementor editor redraws each widget after the page has loaded: without the script below, the component stays still in the editor preview (the published page works). Add it once per site, in the footer like the component's script (`kodza/elementor-editor.js`, or a code-snippets plugin):

```js
// Kodza in the Elementor editor: the editor redraws each HTML widget after the page has loaded.
// Start Kodza in what it draws, stop it in what it replaces or removes. Once per site.
window.addEventListener('elementor/frontend/init', () => {
  if (!elementorFrontend.isEditMode()) return;
  class KodzaWidget extends elementorModules.frontend.handlers.Base {
    onInit() {
      super.onInit();
      this.kodza = [...this.$element[0].children];
      document.dispatchEvent(new CustomEvent('kodza:init', { detail: { root: this.$element[0] } }));
    }
    onDestroy() {
      super.onDestroy();
      this.kodza.forEach((root) => document.dispatchEvent(new CustomEvent('kodza:destroy', { detail: { root } })));
    }
  }
  elementorFrontend.elementsHandler.attachHandler('html', KodzaWidget);
});
```

- No child theme: everything can go in the HTML widget instead, `<style>` with the CSS, the HTML, then `<script>` with the JS. It works on the page and in the editor without the script above.

### Shopify

- Files: `assets/kodza-hero-split.css` and `assets/kodza-hero-split.js` (the Files commands with `-o assets/…`).
- In the section: `{{ 'kodza-hero-split.css' | asset_url | stylesheet_tag }}` and `<script src="{{ 'kodza-hero-split.js' | asset_url }}" defer></script>`, then the HTML.
- The theme editor re-renders sections: restart them with
  `document.addEventListener('shopify:section:load', (e) => document.dispatchEvent(new CustomEvent('kodza:init', { detail: { root: e.target } })));`
  and the same with `shopify:section:unload` → `kodza:destroy`.

### React / Next.js

- Files, side by side (e.g. in `components/kodza/`): `HeroSplit.tsx` (below), the CSS block under Code saved as `hero-split.css` and the JS block as `hero-split.js`, both as they are. The HTML block is already inside the component: skip it.
- Use it: `import { HeroSplit } from '@/components/kodza/HeroSplit';` then `<HeroSplit />`. Props: `vars` (the `--kz-…` variables listed under API, e.g. `vars={{ '--kz-hero-split-ink': … }}`), `className`, `style` and the other props of its `<section>` (`onClick`, `aria-…`).
- Next.js App Router: it is a Client Component already (`'use client'`). Pages Router: Next.js takes global CSS only in `pages/_app`, so move the `import './hero-split.css'` line there.
- Safe under StrictMode, client-side navigation and prop changes: when a prop changes, the `key` gives React a fresh element, `kodza:destroy` stops the script on the old one and `kodza:init` starts it on the new one.

```tsx
'use client';
// Kodza — Hero Split, for React. From https://kodza.dev/components/hero-split/
// 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: hero-split.css and hero-split.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 './hero-split.css';

export type HeroSplitProps = Omit<ComponentPropsWithoutRef<'section'>, "children" | "vars"> & {
  /** Settings, as CSS variables on the root */
  vars?: {
    /** default: #0a0a0a */
    "--kz-hero-split-ink"?: string | number;
    /** default: #f2f2f0 */
    "--kz-hero-split-paper"?: string | number;
    /** default: rgba(10, 10, 10, 0.62) */
    "--kz-hero-split-dim"?: string | number;
    /** default: rgba(10, 10, 10, 0.6) */
    "--kz-hero-split-faint"?: string | number;
    /** default: rgba(10, 10, 10, 0.07) */
    "--kz-hero-split-soft"?: string | number;
    /** default: transparent */
    "--kz-hero-split-bg"?: string | number;
    /** default: 1240px */
    "--kz-hero-split-width"?: string | number;
    /** default: clamp(32px, 5vw, 80px) */
    "--kz-hero-split-gap"?: string | number;
    /** default: clamp(72px, 9vw, 140px) */
    "--kz-hero-split-pad-y"?: string | number;
    /** default: clamp(16px, 4vw, 40px) */
    "--kz-hero-split-gutter"?: string | number;
    /** default: 16px */
    "--kz-hero-split-radius"?: string | number;
    /** default: 4 / 5 */
    "--kz-hero-split-ratio"?: string | number;
    /** default: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace */
    "--kz-hero-split-mono"?: string | number;
    /** default: cubic-bezier(0.22, 1, 0.36, 1) */
    "--kz-hero-split-ease"?: string | number;
  };
  className?: string;
};

export function HeroSplit({ vars, className, style, ...rest }: HeroSplitProps) {
  const ref = useRef<ComponentRef<'section'>>(null);
  const classes = ["kodza-hero-split", 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('./hero-split.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 (
    <section key={key} {...rest} className={classes} style={{ ...vars, ...style } as CSSProperties} ref={ref}>
      <div className="kodza-hero-split__inner">
        <div className="kodza-hero-split__copy">
          <p className="kodza-hero-split__eyebrow">
            <span className="kodza-hero-split__rise">v2.0 · now with fewer bugs</span>
          </p>
          <h1 className="kodza-hero-split__title">
            <span className="kodza-hero-split__line">
              <span className="kodza-hero-split__rise">Ship the page,</span>
            </span>
            {' '}
            <span className="kodza-hero-split__line">
              <span className="kodza-hero-split__rise">not the meeting.</span>
            </span>
          </h1>
          <p className="kodza-hero-split__lead">Forty sections, one paste each. Your client edits the words, you keep the weekend.</p>
          <div className="kodza-hero-split__actions">
            <a className="kodza-hero-split__button kodza-hero-split__button--ink" href="#">Get the code<svg className="kodza-hero-split__arrow" viewBox="0 0 16 16" aria-hidden="true"> <path d="M2.5 8h10.5M9 3.5 13.5 8 9 12.5" /> </svg></a>
            {' '}
            <a className="kodza-hero-split__button kodza-hero-split__button--soft" href="#">See it live</a>
          </div>
        </div>
        <figure className="kodza-hero-split__media">
          <div className="kodza-hero-split__frame">
            <div className="kodza-hero-split__curtain">
              <div className="kodza-hero-split__hold">
                <img src="https://kodza.dev/media/kz-block-1400.webp" alt="Concrete blocks stacked under a flat light" width="1120" height="1400" />
              </div>
            </div>
          </div>
          <figcaption className="kodza-hero-split__caption">fig. 01 — poured in Python, not stock</figcaption>
        </figure>
      </div>
    </section>
  );
}
```

## Code

```html
<section class="kodza-hero-split">
  <div class="kodza-hero-split__inner">
    <div class="kodza-hero-split__copy">
      <p class="kodza-hero-split__eyebrow"><span class="kodza-hero-split__rise">v2.0 · now with fewer bugs</span></p>
      <h1 class="kodza-hero-split__title"><span class="kodza-hero-split__line"><span class="kodza-hero-split__rise">Ship the page,</span></span> <span class="kodza-hero-split__line"><span class="kodza-hero-split__rise">not the meeting.</span></span></h1>
      <p class="kodza-hero-split__lead">Forty sections, one paste each. Your client edits the words, you keep the weekend.</p>
      <div class="kodza-hero-split__actions">
        <a class="kodza-hero-split__button kodza-hero-split__button--ink" href="#">Get the code<svg class="kodza-hero-split__arrow" viewBox="0 0 16 16" aria-hidden="true"><path d="M2.5 8h10.5M9 3.5 13.5 8 9 12.5" /></svg></a>
        <a class="kodza-hero-split__button kodza-hero-split__button--soft" href="#">See it live</a>
      </div>
    </div>
    <figure class="kodza-hero-split__media">
      <div class="kodza-hero-split__frame"><div class="kodza-hero-split__curtain"><div class="kodza-hero-split__hold"><img src="https://kodza.dev/media/kz-block-1400.webp" alt="Concrete blocks stacked under a flat light" width="1120" height="1400" /></div></div></div>
      <figcaption class="kodza-hero-split__caption">fig. 01 — poured in Python, not stock</figcaption>
    </figure>
  </div>
</section>
```

```css
/* Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license */
/* Kodza — Hero Split
   A split hero: a tight headline and two pill buttons on the left, a 4:5 picture on the right.
   On arrival the lines rise out of their masks while the picture opens from the top edge down.
   Everything is tuned with the --kz-hero-split-* variables. */
.kodza-hero-split {
  --kz-hero-split-ink: #0a0a0a;
  --kz-hero-split-paper: #f2f2f0;
  --kz-hero-split-dim: rgba(10, 10, 10, 0.62);
  --kz-hero-split-faint: rgba(10, 10, 10, 0.6);
  --kz-hero-split-soft: rgba(10, 10, 10, 0.07);
  --kz-hero-split-bg: transparent;
  --kz-hero-split-width: 1240px;
  --kz-hero-split-gap: clamp(32px, 5vw, 80px);
  --kz-hero-split-pad-y: clamp(72px, 9vw, 140px);
  --kz-hero-split-gutter: clamp(16px, 4vw, 40px);
  --kz-hero-split-radius: 16px;
  --kz-hero-split-ratio: 4 / 5;
  --kz-hero-split-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --kz-hero-split-ease: cubic-bezier(0.22, 1, 0.36, 1);

  container: kodza-hero-split / inline-size;
  box-sizing: border-box;
  width: 100%;
  padding-block: var(--kz-hero-split-pad-y);
  padding-left: max(var(--kz-hero-split-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--kz-hero-split-gutter), env(safe-area-inset-right, 0px));
  background: var(--kz-hero-split-bg);
  color: var(--kz-hero-split-ink);
}

.kodza-hero-split__inner {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--kz-hero-split-gap);
  align-items: center;
  max-width: var(--kz-hero-split-width);
  margin: 0 auto;
}

.kodza-hero-split__copy {
  min-width: 0;
}

.kodza-hero-split__eyebrow {
  margin: 0 0 22px;
  overflow: hidden;
  font-family: var(--kz-hero-split-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--kz-hero-split-faint);
}

.kodza-hero-split__title {
  margin: 0 0 26px;
  font-size: clamp(40px, 6.2vw, 92px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--kz-hero-split-ink);
}

/* Each line is its own mask: the words rise from behind its bottom edge */
.kodza-hero-split__line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}

.kodza-hero-split__rise {
  display: block;
}

.kodza-hero-split__lead {
  max-width: 30ch;
  margin: 0 0 36px;
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.55;
  color: var(--kz-hero-split-dim);
  text-wrap: pretty;
}

.kodza-hero-split__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.kodza-hero-split__button {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 26px;
  border: 0;
  border-radius: 999px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}

.kodza-hero-split__button:focus-visible {
  outline: 2px solid var(--kz-hero-split-ink);
  outline-offset: 3px;
}

/* Solid: the arrow steps forward on hover */
.kodza-hero-split__button--ink {
  background: var(--kz-hero-split-ink);
  color: var(--kz-hero-split-paper);
}

.kodza-hero-split__arrow {
  flex: none;
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.3s var(--kz-hero-split-ease);
}

/* Soft: ink rises from the bottom edge on hover */
.kodza-hero-split__button--soft {
  background: var(--kz-hero-split-soft);
  color: var(--kz-hero-split-ink);
  transition: color 0.4s var(--kz-hero-split-ease);
}

.kodza-hero-split__button--soft::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--kz-hero-split-ink);
  transform: translateY(101%);
  transition: transform 0.4s var(--kz-hero-split-ease);
}

@media (hover: hover) {
  .kodza-hero-split__button--ink:hover .kodza-hero-split__arrow {
    transform: translateX(4px);
  }

  .kodza-hero-split__button--soft:hover {
    color: var(--kz-hero-split-paper);
  }

  .kodza-hero-split__button--soft:hover::before {
    transform: none;
  }
}

.kodza-hero-split__media {
  min-width: 0;
  margin: 0;
}

/* The curtain: the middle layer slides down from above while the inner one slides up into
   place, so the picture is uncovered from the top edge down and never moves itself */
.kodza-hero-split__frame {
  max-width: 100%;
  aspect-ratio: var(--kz-hero-split-ratio);
  overflow: hidden;
  border-radius: var(--kz-hero-split-radius);
}

.kodza-hero-split__curtain,
.kodza-hero-split__hold {
  height: 100%;
}

.kodza-hero-split__curtain {
  overflow: hidden;
}

.kodza-hero-split__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kodza-hero-split__caption {
  margin-top: 12px;
  font-family: var(--kz-hero-split-mono);
  font-size: 12.5px;
  color: var(--kz-hero-split-faint);
}

/* Waiting for its entrance: the script sets is-shown and plays the motion in the same frame */
@media (prefers-reduced-motion: no-preference) {
  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__rise {
    transform: translateY(105%);
  }

  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__curtain {
    transform: translateY(-100%);
  }

  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__hold {
    transform: translateY(100%);
  }

  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__lead,
  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__actions,
  .kodza-hero-split.is-ready:not(.is-shown) .kodza-hero-split__caption {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* One column: the picture goes under the words, wider than tall, and the buttons share the row */
@container kodza-hero-split (max-width: 700px) {
  .kodza-hero-split__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .kodza-hero-split__frame {
    aspect-ratio: 4 / 3;
  }

  .kodza-hero-split__button {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kodza-hero-split *,
  .kodza-hero-split *::before,
  .kodza-hero-split *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* kodza-guard a4026e78c4cd — 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-hero-split__eyebrow):not(#_),
:where(.kodza-hero-split__title):not(#_),
:where(.kodza-hero-split__lead):not(#_),
:where(.kodza-hero-split__media):not(#_),
:where(.kodza-hero-split__caption):not(#_),
:where(.kodza-hero-split__hold img:where(:not([class*="kodza-"]))):not(#_) {
  transition-duration: revert;
}

:where(.kodza-hero-split__button):not(#_) {
  outline: revert;
  transition: revert;
  outline-offset: revert;
}

/* What the browser gives, on everything the component leaves to it */

.kodza-hero-split__inner:not(#_),
.kodza-hero-split__copy:not(#_),
.kodza-hero-split__rise:not(#_),
.kodza-hero-split__line:not(#_),
.kodza-hero-split__actions:not(#_),
.kodza-hero-split__frame:not(#_),
.kodza-hero-split__curtain:not(#_),
.kodza-hero-split__hold:not(#_) {
  box-sizing: revert;
}

.kodza-hero-split__eyebrow:not(#_) {
  border: 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;
  font-style: revert;
  line-height: revert;
  text-transform: revert;
  text-underline-offset: revert;
  text-align: revert;
  text-indent: revert;
  text-shadow: revert;
  vertical-align: revert;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__title:not(#_) {
  border: 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;
  font-family: revert;
  font-style: revert;
  text-transform: revert;
  text-underline-offset: revert;
  text-align: revert;
  text-indent: revert;
  text-shadow: revert;
  vertical-align: revert;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__lead:not(#_) {
  border: 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-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;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__button:not(#_) {
  margin: revert;
  list-style: revert;
  float: revert;
  box-shadow: revert;
  appearance: revert;
  max-width: revert;
  max-height: 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-hero-split__arrow: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-hero-split__media:not(#_) {
  border: 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;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__caption:not(#_) {
  border: revert;
  padding: revert;
  border-radius: revert;
  outline: revert;
  text-decoration: revert;
  list-style: revert;
  box-sizing: revert;
  float: revert;
  position: revert;
  margin-right: revert;
  margin-bottom: revert;
  margin-left: 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;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__hold img: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;
  transition-property: revert;
  transition-timing-function: revert;
  transition-delay: revert;
}

.kodza-hero-split__eyebrow:not(#_):where(:not([hidden])),
.kodza-hero-split__title:not(#_):where(:not([hidden])),
.kodza-hero-split__lead:not(#_):where(:not([hidden])),
.kodza-hero-split__arrow:not(#_):where(:not([hidden])),
.kodza-hero-split__media:not(#_):where(:not([hidden])),
.kodza-hero-split__caption:not(#_):where(:not([hidden])) {
  display: revert;
}

.kodza-hero-split__eyebrow:not(#_):where([hidden]),
.kodza-hero-split__title:not(#_):where([hidden]),
.kodza-hero-split__lead:not(#_):where([hidden]),
.kodza-hero-split__arrow:not(#_):where([hidden]),
.kodza-hero-split__media:not(#_):where([hidden]),
.kodza-hero-split__caption: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-hero-split__eyebrow:not(#_) {
  margin: 0 0 22px;
  font-family: var(--kz-hero-split-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--kz-hero-split-faint);
}

.kodza-hero-split__title:not(#_) {
  margin: 0 0 26px;
  font-size: clamp(40px, 6.2vw, 92px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--kz-hero-split-ink);
}

.kodza-hero-split__lead:not(#_) {
  max-width: 30ch;
  margin: 0 0 36px;
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.55;
  color: var(--kz-hero-split-dim);
}

.kodza-hero-split__button:not(#_) {
  position: relative;
  box-sizing: border-box;
  display: inline-flex;
  padding: 0 26px;
  border: 0;
  border-radius: 999px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
}

.kodza-hero-split__button:focus-visible:not(#_) {
  outline: 2px solid var(--kz-hero-split-ink);
  outline-offset: 3px;
}

.kodza-hero-split__button--ink:not(#_) {
  background: var(--kz-hero-split-ink);
  color: var(--kz-hero-split-paper);
}

.kodza-hero-split__arrow:not(#_) {
  transition: transform 0.3s var(--kz-hero-split-ease);
}

.kodza-hero-split__button--soft:not(#_) {
  background: var(--kz-hero-split-soft);
  color: var(--kz-hero-split-ink);
  transition: color 0.4s var(--kz-hero-split-ease);
}

@media (hover: hover) {
  .kodza-hero-split__button--soft:hover:not(#_) {
    color: var(--kz-hero-split-paper);
  }
}

.kodza-hero-split__media:not(#_) {
  margin: 0;
}

.kodza-hero-split__frame img:not(#_) {
  display: block;
}

.kodza-hero-split__caption:not(#_) {
  margin-top: 12px;
  font-family: var(--kz-hero-split-mono);
  font-size: 12.5px;
  color: var(--kz-hero-split-faint);
}

@media (prefers-reduced-motion: reduce) {
  .kodza-hero-split *:where(p, h1, a, svg, figure, img, figcaption):not(#_) {
    transition-duration: 0.01ms !important;
  }
}
```

```js
// Kodza License: free to use, client work included. Not to resell or redistribute, ported or not: https://kodza.dev/docs/#print-license
// Kodza — Hero Split
// Plays the entrance once the section is in view, its picture decoded and the fonts in: the
// label and title lines rise out of their masks, the picture opens from the top edge down, then
// the intro, buttons and caption follow. "kodza:replay" plays it again.
(() => {
  const SELECTOR = '.kodza-hero-split';
  const reduceMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
  const GLIDE = 'cubic-bezier(0.6, 0, 0.1, 1)'; // slow start, long settle
  const SOFT = 'cubic-bezier(0.25, 1, 0.5, 1)';

  const decoded = (root) => Promise.all([...root.querySelectorAll('img')].map((img) => img.decode().catch(() => {})));

  // 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) {
    if (reduceMotion) return root.classList.add('is-shown');
    const q = (s) => root.querySelector(s);
    let running = [];
    const stop = () => {
      running.forEach((a) => a.cancel());
      running = [];
    };
    const animate = (el, keyframes, options) => {
      if (el) running.push(el.animate(keyframes, { easing: GLIDE, fill: 'backwards', ...options }));
    };
    const rise = (el, delay, duration) => animate(el, [{ transform: 'translateY(105%)' }, { transform: 'none' }], { duration, delay });

    const play = async () => {
      await decoded(root);
      if (signal.aborted) return;
      stop();
      root.classList.add('is-shown');
      rise(q('.kodza-hero-split__eyebrow .kodza-hero-split__rise'), 0, 1000);
      root.querySelectorAll('.kodza-hero-split__line .kodza-hero-split__rise').forEach((line, i) => rise(line, 110 + i * 125, 1170));
      // The curtain: both layers on transforms, the picture settles from a slight zoom
      animate(q('.kodza-hero-split__curtain'), [{ transform: 'translateY(-100%)' }, { transform: 'none' }], { duration: 1350, delay: 200 });
      animate(q('.kodza-hero-split__hold'), [{ transform: 'translateY(100%)' }, { transform: 'none' }], { duration: 1350, delay: 200 });
      animate(q('.kodza-hero-split__frame img'), [{ transform: 'scale(1.2)' }, { transform: 'none' }], { duration: 2000, delay: 200, easing: SOFT });
      [q('.kodza-hero-split__lead'), q('.kodza-hero-split__actions'), q('.kodza-hero-split__caption')].forEach((el, i) => {
        animate(el, [{ opacity: 0, transform: 'translateY(20px)' }, { opacity: 1, transform: 'none' }], { duration: 900, delay: 700 + i * 110, easing: SOFT });
      });
    };

    root.addEventListener('kodza:replay', play, { signal });
    signal.addEventListener('abort', stop);
    const io = new IntersectionObserver((entries) => {
      if (!entries.some((entry) => entry.isIntersecting)) return;
      io.disconnect();
      play();
    }, { rootMargin: '0px 0px -15% 0px' });
    signal.addEventListener('abort', () => io.disconnect());
    Promise.all([document.fonts?.ready, decoded(root)]).then(() => {
      if (!signal.aborted) io.observe(root);
    });
  }

  // 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 });
})();
```

Free to use, from Kodza (https://kodza.dev).