scroll-timeline-builder/index.html at main · css-scroll-driven/scroll-timeline-builder · GitHub

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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>scroll-timeline-builder — visual builder for CSS scroll-driven animations</title>
<meta name="description" content="A zero-dependency visual builder for CSS scroll-driven animations: configure scroll() and view() timelines, ranges and keyframes, preview them live, and copy production-ready CSS.">
<link rel="stylesheet" href="styles/app.css">
<link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><text y='13' font-size='13'>📜</text></svg>">
</head>
<body>

<a class="skip-link" href="#controls">Skip to controls</a>

<header class="app-header">
  <div class="app-header__title">
    <h1>scroll-timeline-builder</h1>
    <p class="tagline">Build a CSS scroll-driven animation, watch it run, copy the CSS.</p>
  </div>
  <div class="app-header__actions">
    <label class="field field--inline">
      <span>Preset</span>
      <select id="preset-select">
        <option value="">Custom…</option>
      </select>
    </label>
    <button type="button" id="copy-link" class="btn">Copy share link</button>
    <button type="button" id="reset" class="btn btn--quiet">Reset</button>
  </div>
</header>

<div id="support-banner" class="banner" role="status" hidden></div>

<main class="layout">

  <!-- ------------------------------------------------------------------ -->
  <!-- Controls                                                            -->
  <!-- ------------------------------------------------------------------ -->
  <form id="controls" class="panel panel--controls" aria-label="Animation settings">

    <fieldset class="group">
      <legend>Timeline</legend>
      <div class="radio-row" role="radiogroup" aria-label="Timeline mode">
        <label class="radio"><input type="radio" name="mode" value="scroll"> <span>scroll()</span></label>
        <label class="radio"><input type="radio" name="mode" value="view"> <span>view()</span></label>
        <label class="radio"><input type="radio" name="mode" value="named"> <span>Named</span></label>
      </div>
      <p class="hint" id="mode-hint"></p>

      <div data-show="named" class="stack">
        <label class="field">
          <span>Timeline kind</span>
          <select id="named-kind">
            <option value="scroll">scroll-timeline-name</option>
            <option value="view">view-timeline-name</option>
          </select>
        </label>
        <label class="field">
          <span>Timeline name</span>
          <input type="text" id="timeline-name" spellcheck="false" autocomplete="off">
        </label>
        <label class="check">
          <input type="checkbox" id="use-timeline-scope">
          <span>Share via <code>timeline-scope</code> on an ancestor</span>
        </label>
      </div>

      <div data-show="scroller" class="stack">
        <label class="field">
          <span>Scroller</span>
          <select id="scroller">
            <option value="nearest">nearest</option>
            <option value="root">root</option>
            <option value="self">self</option>
          </select>
        </label>
      </div>

      <label class="field">
        <span>Axis</span>
        <select id="axis">
          <option value="block">block</option>
          <option value="inline">inline</option>
          <option value="x">x</option>
          <option value="y">y</option>
        </select>
      </label>

      <div data-show="view" class="stack">
        <div class="field-row">
          <label class="field">
            <span>Inset start</span>
            <input type="text" id="inset-start" spellcheck="false" autocomplete="off" placeholder="0">
          </label>
          <label class="field">
            <span>Inset end</span>
            <input type="text" id="inset-end" spellcheck="false" autocomplete="off" placeholder="0">
          </label>
        </div>
        <p class="hint">Shrinks the scrollport the subject is measured against. Accepts px or %.</p>
      </div>
    </fieldset>

    <fieldset class="group">
      <legend>Animation range</legend>

      <div data-show="view" class="stack">
        <div class="field-row">
          <label class="field">
            <span>Start range</span>
            <select id="range-start-name"></select>
          </label>
          <label class="field">
            <span>Start offset (%)</span>
            <input type="number" id="range-start-offset" step="1" min="-100" max="200">
          </label>
        </div>
        <div class="field-row">
          <label class="field">
            <span>End range</span>
            <select id="range-end-name"></select>
          </label>
          <label class="field">
            <span>End offset (%)</span>
            <input type="number" id="range-end-offset" step="1" min="-100" max="200">
          </label>
        </div>
      </div>

      <div data-show="scroll-range" class="stack">
        <div class="field-row">
          <label class="field">
            <span>Range start</span>
            <input type="text" id="range-scroll-start" spellcheck="false" autocomplete="off" placeholder="normal">
          </label>
          <label class="field">
            <span>Range end</span>
            <input type="text" id="range-scroll-end" spellcheck="false" autocomplete="off" placeholder="normal">
          </label>
        </div>
        <p class="hint">Scroll timelines take <code>normal</code>, a length (<code>200px</code>) or a percentage.</p>
      </div>
    </fieldset>

    <fieldset class="group">
      <legend>Easing</legend>
      <label class="field">
        <span>Function</span>
        <select id="easing-type">
          <option value="linear">linear</option>
          <option value="ease">ease</option>
          <option value="ease-in">ease-in</option>
          <option value="ease-out">ease-out</option>
          <option value="ease-in-out">ease-in-out</option>
          <option value="steps">steps()</option>
          <option value="cubic-bezier">cubic-bezier()</option>
        </select>
      </label>

      <div data-show="steps" class="field-row">
        <label class="field">
          <span>Steps</span>
          <input type="number" id="easing-steps" min="1" max="60" step="1">
        </label>
        <label class="field">
          <span>Position</span>
          <select id="easing-step-position">
            <option value="jump-start">jump-start</option>
            <option value="jump-end">jump-end</option>
            <option value="jump-none">jump-none</option>
            <option value="jump-both">jump-both</option>
          </select>
        </label>
      </div>

      <div data-show="bezier" class="field-row field-row--4">
        <label class="field"><span>x1</span><input type="number" id="bezier-0" step="0.01" min="0" max="1"></label>
        <label class="field"><span>y1</span><input type="number" id="bezier-1" step="0.01"></label>
        <label class="field"><span>x2</span><input type="number" id="bezier-2" step="0.01" min="0" max="1"></label>
        <label class="field"><span>y2</span><input type="number" id="bezier-3" step="0.01"></label>
      </div>
    </fieldset>

    <fieldset class="group">
      <legend>Keyframes</legend>
      <div id="keyframe-list" class="keyframes"></div>
      <button type="button" id="add-stop" class="btn btn--wide">+ Add keyframe stop</button>
    </fieldset>

    <fieldset class="group">
      <legend>Output naming</legend>
      <div class="field-row">
        <label class="field">
          <span>@keyframes name</span>
          <input type="text" id="animation-name" spellcheck="false" autocomplete="off">
        </label>
        <label class="field">
          <span>Subject class</span>
          <input type="text" id="subject-class" spellcheck="false" autocomplete="off">
        </label>
      </div>
    </fieldset>
  </form>

  <!-- ------------------------------------------------------------------ -->
  <!-- Preview + output                                                    -->
  <!-- ------------------------------------------------------------------ -->
  <div class="panel panel--preview">
    <div class="panel__head">
      <h2>Preview</h2>
      <label class="field field--inline">
        <span>Layout</span>
        <select id="layout">
          <option value="card">Single card</option>
          <option value="cards">Row of cards</option>
          <option value="hero">Full-bleed hero</option>
          <option value="progress">Progress bar</option>
        </select>
      </label>
    </div>

    <div id="preview-stage" class="preview-stage"></div>

    <div class="scrub">
      <label class="field field--inline scrub__control">
        <span>Scrub</span>
        <input type="range" id="scrub" min="0" max="100" step="0.5" value="0"
               aria-describedby="scrub-hint">
      </label>
      <output id="scrub-value" for="scrub">0%</output>
      <button type="button" id="scrub-release" class="btn btn--quiet">Back to scrolling</button>
    </div>
    <p class="hint" id="scrub-hint">
      Drag to drive progress by hand. Scrubbing uses the Web Animations API, so it works even
      where scroll-driven animations are unsupported.
    </p>

    <div class="panel__head panel__head--code">
      <h2>Generated code</h2>
      <div class="tabs" role="tablist" aria-label="Generated code format">
        <button type="button" class="tab" role="tab" id="tab-css" aria-controls="code-css" aria-selected="true">CSS</button>
        <button type="button" class="tab" role="tab" id="tab-html" aria-controls="code-html" aria-selected="false">HTML</button>
      </div>
      <button type="button" id="copy-code" class="btn">Copy CSS</button>
    </div>

    <pre id="code-css" class="code" role="tabpanel" aria-labelledby="tab-css" tabindex="0"></pre>
    <pre id="code-html" class="code" role="tabpanel" aria-labelledby="tab-html" tabindex="0" hidden></pre>
  </div>
</main>

<footer class="app-footer">
  <p>
    Open source, zero dependencies.
    Background reading:
    <a href="https://www.css-scroll-driven.com/core-animation-fundamentals-browser-mechanics/understanding-the-css-scroll-timeline-api/">
      understanding the CSS scroll-timeline API</a>.
  </p>
</footer>

<div id="toast" class="toast" role="status" aria-live="polite"></div>

<script type="module" src="src/main.js"></script>
</body>
</html>