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hyperframes/docs/catalog/components/caption-editorial-emphasis.mdx
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Miguel Ángel d7688f9943 fix(docs): load the player from latest, not a pinned minor (#3320) 
* fix(docs): load the player from latest, not a pinned minor

The catalog pages pinned the player CDN URL to a minor line, and that pin
sat one line behind after the last release. Every page kept rendering, on
the older build, so nothing surfaced it: the only symptom was that a fix
published to npm never appeared on the docs.

The generator derived its pin from the player's package.json, which is
correct only if every page is regenerated on the release that moves it.
That is the step that did not happen, and it has to happen across 175
generated pages plus three hand-written files for the pin to be true.

A version carried in step across 178 places will be stale, and stale here
is silent. Ask for latest instead and there is nothing to carry.

This costs the ability to hold the docs back from a bad player release.
Paid deliberately: the pin did not buy that either, it only delayed the
good releases too.

A test asserts no pinned version comes back, and fails if it stops finding
the references at all, so it cannot pass by matching nothing.

* refactor(scripts): list tracked files instead of walking the tree

The pin guard hand-rolled a recursive directory walk with its own skip
list and size cap, which the audit flagged: helpers living in a test file
earn no coverage, so their complexity lands straight on the CRAP score.

git already knows which files to read, and ignores node_modules and build
output for us, so one call replaces the walker and both findings go away.
2026-08-17 21:11:12 -04:00

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---
title: "Editorial Emphasis"
description: "Dual-font system with dramatic size contrast for emphasis words"
---
import { InstallCommand } from "/snippets/install-command.jsx";
<iframe
className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800"
title="caption-editorial-emphasis preview"
loading="lazy"
srcDoc={`<!doctype html><html><head><meta charset="utf-8"><style>html,body{margin:0;height:100%;overflow:hidden;background:transparent}hyperframes-player{display:block;width:100%;height:100%}</style><script src="https://cdn.jsdelivr.net/npm/@hyperframes/player@latest/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/components/caption-editorial-emphasis.json").then(function(r){return r.json()}).then(function(d){var p=document.createElement("hyperframes-player");p.setAttribute("srcdoc",d.html);p.setAttribute("controls","");p.setAttribute("autoplay","");p.setAttribute("loop","");p.setAttribute("muted","");p.setAttribute("poster","https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/caption-editorial-emphasis.png");document.body.appendChild(p)});<\/script></body></html>`}
/>
## Install
<InstallCommand command="npx hyperframes add caption-editorial-emphasis" item="caption-editorial-emphasis" />
That writes one file: `compositions/components/caption-editorial-emphasis.html`.
## Source
<Accordion title={`caption-editorial-emphasis.html`}>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1920, height=1080" />
<title>Editorial Emphasis</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=Inter:wght@400&family=Playfair+Display:ital,wght@0,800;1,800&display=swap"
rel="stylesheet"
/>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
*,
*::before,
*::after {
box-sizing: border-box;
}
html,
body {
width: 1920px;
height: 1080px;
margin: 0;
overflow: hidden;
background: transparent;
font-family: "Inter", sans-serif;
}
#editorial-emphasis {
pointer-events: none;
position: relative;
width: 1920px;
height: 1080px;
overflow: hidden;
background: transparent;
}
.caption-layer {
position: absolute;
inset: 0;
z-index: 20;
pointer-events: none;
transform: translateZ(0);
}
.safe-zone {
position: absolute;
top: 580px;
left: 60px;
width: 1800px;
height: 430px;
display: flex;
align-items: flex-start;
justify-content: flex-start;
}
.caption-block {
position: absolute;
left: 0;
top: 0;
opacity: 0;
transform-origin: 0% 0%;
will-change: transform, opacity;
backface-visibility: hidden;
}
.caption-line {
display: flex;
align-items: baseline;
gap: 14px;
line-height: 1.1;
white-space: nowrap;
}
.caption-line + .caption-line {
margin-top: 8px;
}
.word {
display: inline-block;
color: #f5f0d0;
text-shadow:
0 2px 12px rgba(0, 0, 0, 0.6),
0 4px 24px rgba(0, 0, 0, 0.35);
will-change: transform, opacity;
backface-visibility: hidden;
}
.word--normal {
font-family: "Inter", sans-serif;
font-size: 86px;
font-weight: 400;
font-style: normal;
}
.word--italic {
font-family: "Inter", sans-serif;
font-size: 86px;
font-weight: 400;
font-style: italic;
}
.word--emphasis {
font-family: "Playfair Display", serif;
font-size: 180px;
font-weight: 800;
font-style: italic;
line-height: 0.9;
color: #f5f0d0;
}
</style>
</head>
<body>
<div
id="editorial-emphasis"
data-composition-id="caption-editorial-emphasis"
data-timeline-locked
data-start="0"
data-duration="8"
data-fps="30"
data-width="1920"
data-height="1080"
>
<div class="caption-layer" aria-hidden="true">
<div id="caption-stage" class="safe-zone"></div>
</div>
</div>
<script>
var DURATION = 8;
var SAFE_WIDTH = 1800;
var ENTRY_DUR = 0.1;
var SLIDE_DUR = 0.2;
var _fitCanvas = document.createElement("canvas");
var _fitCtx = _fitCanvas.getContext("2d");
function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
var size = baseFontSize;
var minSize = Math.floor(baseFontSize * 0.45);
while (size > minSize) {
_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
if (_fitCtx.measureText(text).width <= maxWidth) return size;
size -= 2;
}
return minSize;
}
// Generic transcript words
var W = [
{ text: "Every", start: 0.0, end: 0.3 },
{ text: "great", start: 0.3, end: 0.55 },
{ text: "video", start: 0.55, end: 0.85 },
{ text: "starts", start: 0.85, end: 1.1 },
{ text: "with", start: 1.1, end: 1.25 },
{ text: "a", start: 1.25, end: 1.35 },
{ text: "single", start: 1.35, end: 1.65 },
{ text: "frame.", start: 1.65, end: 2.0 },
{ text: "HyperFrames", start: 2.1, end: 2.65 },
{ text: "lets", start: 2.65, end: 2.85 },
{ text: "you", start: 2.85, end: 2.95 },
{ text: "write", start: 2.95, end: 3.15 },
{ text: "HTML", start: 3.15, end: 3.55 },
{ text: "and", start: 3.55, end: 3.65 },
{ text: "render", start: 3.65, end: 3.95 },
{ text: "professional", start: 3.95, end: 4.45 },
{ text: "video.", start: 4.45, end: 4.8 },
{ text: "No", start: 4.9, end: 5.05 },
{ text: "timeline.", start: 5.05, end: 5.45 },
{ text: "No", start: 5.5, end: 5.65 },
{ text: "drag", start: 5.65, end: 5.85 },
{ text: "and", start: 5.85, end: 5.95 },
{ text: "drop.", start: 5.95, end: 6.25 },
{ text: "Just", start: 6.35, end: 6.55 },
{ text: "code", start: 6.55, end: 6.8 },
{ text: "that", start: 6.8, end: 6.95 },
{ text: "becomes", start: 6.95, end: 7.3 },
{ text: "cinema.", start: 7.3, end: 7.7 },
];
// Block layout: [wordIndex, type] — n=normal, i=italic, e=emphasis(large)
// Emphasis words: HyperFrames(8), HTML(12), professional(15), code(24), cinema.(27)
var BLOCKS = [
{
line1: [
[0, "n"],
[1, "n"],
[2, "n"],
],
line2: [
[3, "n"],
[4, "n"],
],
},
{
line1: [
[5, "n"],
[6, "n"],
],
line2: [[7, "e"]],
},
{ line1: [[8, "e"]], line2: null },
{
line1: [
[9, "n"],
[10, "n"],
[11, "n"],
],
line2: [[12, "e"]],
},
{
line1: [
[13, "n"],
[14, "n"],
],
line2: [[15, "e"]],
},
{
line1: [
[16, "n"],
[17, "n"],
],
line2: null,
},
{
line1: [[18, "n"]],
line2: [
[19, "n"],
[20, "n"],
],
},
{
line1: [
[21, "n"],
[22, "n"],
],
line2: null,
},
{
line1: [
[23, "i"],
[24, "e"],
],
line2: null,
},
{
line1: [
[25, "n"],
[26, "n"],
],
line2: [[27, "e"]],
},
];
var CLASS_MAP = { n: "word word--normal", i: "word word--italic", e: "word word--emphasis" };
function computeLineSize(linePairs) {
var hasEmphasis = linePairs.some(function (p) {
return p[1] === "e";
});
if (hasEmphasis) {
var lineText = linePairs
.map(function (p) {
return W[p[0]].text;
})
.join(" ");
return fitFontSize(lineText, 180, "800", "Playfair Display", SAFE_WIDTH);
}
var lineText = linePairs
.map(function (p) {
return W[p[0]].text;
})
.join(" ");
return fitFontSize(lineText, 86, "400", "Inter", SAFE_WIDTH);
}
function buildBlocks() {
var stage = document.getElementById("caption-stage");
BLOCKS.forEach(function (block, bi) {
var el = document.createElement("div");
el.className = "caption-block";
el.id = "b" + bi;
var l1Size = computeLineSize(block.line1);
var l1 = document.createElement("div");
l1.className = "caption-line";
l1.id = "b" + bi + "L1";
block.line1.forEach(function (pair, wi) {
var span = document.createElement("span");
span.className = CLASS_MAP[pair[1]];
span.id = "b" + bi + "L1w" + wi;
span.textContent = W[pair[0]].text;
if (pair[1] === "e") {
span.style.fontSize = l1Size + "px";
} else {
span.style.fontSize = l1Size + "px";
}
l1.appendChild(span);
});
el.appendChild(l1);
if (block.line2) {
var l2Size = computeLineSize(block.line2);
var l2 = document.createElement("div");
l2.className = "caption-line";
l2.id = "b" + bi + "L2";
block.line2.forEach(function (pair, wi) {
var span = document.createElement("span");
span.className = CLASS_MAP[pair[1]];
span.id = "b" + bi + "L2w" + wi;
span.textContent = W[pair[0]].text;
if (pair[1] === "e") {
span.style.fontSize = l2Size + "px";
} else {
span.style.fontSize = l2Size + "px";
}
l2.appendChild(span);
});
el.appendChild(l2);
}
stage.appendChild(el);
});
}
buildBlocks();
// Scale blocks that exceed safe width
(function fitBlocks() {
BLOCKS.forEach(function (block, bi) {
var el = document.getElementById("b" + bi);
el.style.opacity = "1";
el.style.position = "relative";
var lines = el.querySelectorAll(".caption-line");
var maxW = 0;
lines.forEach(function (line) {
if (line.scrollWidth > maxW) maxW = line.scrollWidth;
});
if (maxW > SAFE_WIDTH) {
var s = SAFE_WIDTH / maxW;
el.style.transform = "scale(" + s + ")";
}
el.style.opacity = "0";
el.style.position = "";
});
})();
window.__timelines = window.__timelines || {};
var tl = gsap.timeline({ paused: true });
var allEls = BLOCKS.map(function (_, i) {
return document.getElementById("b" + i);
});
function blockStart(bi) {
return W[BLOCKS[bi].line1[0][0]].start;
}
BLOCKS.forEach(function (block, bi) {
var el = allEls[bi];
var start = blockStart(bi);
var nextStart = bi < BLOCKS.length - 1 ? blockStart(bi + 1) : DURATION;
allEls.forEach(function (other, oi) {
if (oi !== bi) tl.set(other, { opacity: 0 }, start);
});
tl.set(el, { opacity: 1 }, start);
block.line1.forEach(function (pair, wi) {
var wordEl = document.getElementById("b" + bi + "L1w" + wi);
var wordStart = W[pair[0]].start;
tl.set(wordEl, { opacity: 0, scale: 1.12, transformOrigin: "0% 100%" }, start);
tl.to(
wordEl,
{ opacity: 1, scale: 1, duration: ENTRY_DUR, ease: "power2.out" },
wordStart,
);
});
if (block.line2) {
var hasEmphasis = block.line2.some(function (p) {
return p[1] === "e";
});
var l2El = document.getElementById("b" + bi + "L2");
if (hasEmphasis) {
var l2Start = W[block.line2[0][0]].start;
tl.set(l2El, { opacity: 0, x: -1920 }, start);
tl.to(l2El, { opacity: 1, x: 0, duration: SLIDE_DUR, ease: "power2.out" }, l2Start);
} else {
tl.set(l2El, { opacity: 1 }, start);
block.line2.forEach(function (pair, wi) {
var wordEl = document.getElementById("b" + bi + "L2w" + wi);
var wordStart = W[pair[0]].start;
tl.set(wordEl, { opacity: 0, scale: 1.12, transformOrigin: "0% 100%" }, start);
tl.to(
wordEl,
{ opacity: 1, scale: 1, duration: ENTRY_DUR, ease: "power2.out" },
wordStart,
);
});
}
}
tl.set(el, { opacity: 0 }, nextStart);
});
tl.to({}, { duration: DURATION }, 0);
window.__timelines["caption-editorial-emphasis"] = tl;
</script>
</body>
</html>
```
</Accordion>
## Usage
Open `compositions/components/caption-editorial-emphasis.html` and paste its contents into your composition. See the comment header in the file for detailed instructions.
{/* hf:generated-footer */}
Tagged `captions` `caption-style` `editorial` `typography` `emphasis`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)
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