Open experiment
Launch countdown hero
Combines a transparent launch countdown with phase milestones and a focused reminder action. Phase buttons explain milestones; reminder action confirms signup; timer respects reduced motion. Centers scheduled launch state and milestone context rather than an evergreen CTA.
Lab tested Responsive Dark mode Interactive
- Version
- 1.0.0
- Updated
- 2026-08-02
- Dependencies
- Zero
<header class="cmp-launch-countdown-hero cmp-atlas" data-state="idle" data-variant="3">
<div class="cmp-atlas__hero-copy">
<span>Orbital countdown · 2026</span>
<h2>Launch <em>countdown</em></h2>
<p>
Combines a transparent launch countdown with phase milestones and a focused reminder action.
</p>
<div class="cmp-atlas__choices">
<button type="button" data-choice="0" aria-pressed="true">Discover</button
><button type="button" data-choice="1" aria-pressed="false">Compose</button
><button type="button" data-choice="2" aria-pressed="false">Launch</button>
</div>
<div>
<button
type="button"
class="cmp-atlas__primary"
data-primary
data-active-label="Reminder set"
aria-pressed="false"
>
Enter the experience</button
><small data-output>Chapter 01 · Signal</small>
</div>
<p data-status aria-live="polite">Discover mode selected</p>
</div>
<div class="cmp-atlas__hero-stage" aria-hidden="true">
<i></i><i></i><i></i><b>04</b><span>Launch countdown</span>
</div>
</header>
No runtime reactions detected Open in Editor
Validated in the lab
Experiment report
- Schema and source files passed
- Responsive test passed
- Keyboard test passed
- No console errors
Component ingredients
- Dependencies
- None
- Browser support
- Current Chrome, Current Edge, Current Firefox, Current Safari
- Version
- 1.0.0
- Last tested
- 2026-08-02
Accessibility notes
- Every interactive target is a labelled native control with a visible focus treatment.
- State changes are communicated through a polite text status and never by color alone.
- The contained visual effects stop when the user requests reduced motion.
License: MIT License for open-source use, modification, and distribution.