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Samraaj Bath
2026-06-29 15:11:48 -07:00
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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>Motion fixture 3 — scroll-triggered reveals</title>
<style>
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: #0c0d12; color: #eef0f4; font-family: -apple-system, system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif; }
.wrap { max-width: 760px; margin: 0 auto; padding: 64px 24px 160px; }
h1 { font-size: 44px; line-height: 1.1; font-weight: 800; margin: 0 0 12px; letter-spacing: -0.02em; }
.lede { font-size: 18px; color: #9aa2ad; margin: 0 0 48px; }
/* Scroll-reveal: start hidden + lifted, transition in when .in is added on intersection. */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22,1,0.36,1); }
.reveal.in { opacity: 1; transform: translateY(0); }
.card { margin: 28px 0; padding: 28px; background: #15171f; border: 1px solid #242732; border-radius: 16px; }
.card h2 { margin: 0 0 8px; font-size: 22px; font-weight: 700; }
.card p { margin: 0; color: #9aa2ad; line-height: 1.6; }
.spacer { height: 40vh; }
</style>
</head>
<body>
<main class="wrap">
<h1>Scroll to reveal</h1>
<p class="lede">Each card below starts hidden and animates in when it scrolls into view.</p>
<div class="spacer"></div>
<section class="card reveal"><h2>First reveal</h2><p>Fades and slides up as it enters the viewport, driven by IntersectionObserver toggling a class with a CSS transition.</p></section>
<section class="card reveal"><h2>Second reveal</h2><p>The same entrance, staggered down the page so it is comfortably below the initial fold.</p></section>
<section class="card reveal"><h2>Third reveal</h2><p>A deterministic reproduction target: hidden at load, revealed on scroll, settling to full opacity.</p></section>
<section class="card reveal"><h2>Fourth reveal</h2><p>The clone should hide these on load and reveal them on scroll, then the gate verifies it.</p></section>
<section class="card reveal"><h2>Fifth reveal</h2><p>Content is never lost: a force-reveal timer guarantees everything appears even without scrolling.</p></section>
</main>
<script>
var io = new IntersectionObserver(function (entries) {
entries.forEach(function (e) { if (e.isIntersecting) { e.target.classList.add('in'); io.unobserve(e.target); } });
}, { rootMargin: '0px 0px -10% 0px' });
document.querySelectorAll('.reveal').forEach(function (el) { io.observe(el); });
</script>
</body>
</html>