Danger zone

Pulsing label tag over a word-by-word headline. Stages: “That free trial looks harmless but costs $240 a year.” The video fixes a common error and you can name it specifically. Fits lines like “That 'healthy' cereal looks harmless but is 40% sugar.”.

Open my video with this hook: "Danger zone" from the 24fps video editor library.
Preset JSON: https://24fps.dev/video-editor/hooks/danger-zone/preset.json (pass its "preset" to the engine).
Engine (MIT, no dependencies, ES module): https://24fps.dev/editor/engine.js. Download the engine next to your page (curl -O) rather than importing cross-origin, then import { mount } from "./engine.js" in a <script type="module"> served over http.
Wiring: root = a position:relative box at the video's size. media = { main }: main is a wrapper holding my video, filling the root. Then const fx = mount(root, { kind: "text", preset, media }) and call fx.render(seconds) every frame. The preset runs 4s from t = 0; offset t to place it later. It is seek-safe: drive it from the GSAP timeline in HyperFrames or call render(frame / fps) in Remotion. Before capturing frames, await (fx.ready ?? document.fonts.ready). Check it on my footage: if text is hidden behind the subject or doesn't read against my colours, nudge the layer positions or colours.
Replace the demo text with mine: set preset.layers[n].text (use \n for line breaks); if none given, write lines that fit my footage and tell me.
Hook formula: [Thing] looks harmless but [hidden risk].
Field reference: https://24fps.dev/video-editor/llms.txt. Keep sizes as fractions of the frame height so it works at any resolution. Credit: 24fps.dev/video-editor
Formula
[Thing] looks harmless but [hidden risk].
Example lines
That free trial looks harmless but costs $240 a year. · That 'healthy' cereal looks harmless but is 40% sugar. · That cheap flight looks harmless but charges $90 for a bag. · That free app looks harmless but sells your data.
Beats
0.0s Tag 'danger zone' drops in and pulses. → 0.2s Headline 'that free trial costs $240 a year' pops in word by word. → 0.9s Sub-line 'cancel before day 7' fades in. → 1.4s Phone screen showing the 'Start free trial' button; red glow on the button as the line lands.
Technique
Mistake / warning hook: Loss framing: tell viewers they are unknowingly doing it wrong.
Footage
Man talking and gesturing, Pexels

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