22 Tailwind CSS Countdown Timers
20 / 22

All 22 in 22 Tailwind CSS Countdown Timers

  1. 01Accessible Tailwind CSS Countdown Timer with ARIA Live Region
  2. 02Pure Tailwind CSS Countdown Timer Without JavaScript
  3. 03Tailwind Session Timeout Warning Modal with Countdown
  4. 04Tailwind Circular Countdown Timer with SVG Progress Ring
  5. 05Tailwind OTP Input with Resend Code Countdown Timer
  6. 06Tailwind Rate Limit Button with Retry-After Countdown
  7. 07Tailwind Auction Countdown Timer with Anti-Snipe Extension
  8. 08Tailwind Delivery ETA Countdown with Order Tracking Steps
  9. 09Tailwind Waitlist Landing Page with Launch Countdown
  10. 10Tailwind Webinar Countdown Timer with Time Zone Display
  11. 11Tailwind Appointment Reminder Card with Countdown
  12. 12Tailwind Exam Timer with Time Remaining Warnings
  13. 13Tailwind Free Trial Countdown Banner for SaaS Apps
  14. 14Tailwind Scheduled Maintenance Countdown Status Page
  15. 15Tailwind Virtual Waiting Room Queue Countdown
  16. 16Tailwind Daily Streak Countdown Widget for Habit Apps
  17. 17Tailwind Flash Sale Countdown Timer for Product Pages
  18. 18Tailwind Sticky Announcement Bar with Countdown Timer
  19. 19Tailwind Shopping Cart Reservation Countdown Timer
  20. 20Tailwind Coming Soon Page with Launch Countdown Timer
  21. 21Tailwind Interval Workout Timer with Circular Progress
  22. 22Tailwind Retro Flip Clock Countdown Timer
Tailwind + JSMIT licensed

Tailwind Coming Soon Page with Launch Countdown Timer

The classic pre-launch splash, rebuilt: a wordmark, one serif headline, four frosted unit tiles for days, hours, minutes and seconds, and a single email field. Where most versions stall at zero, this one flips the whole page to a live state via data-live. New in the port: Notify me validates and confirms in place via data-subscribed, and the waiting count updates.

Live Demo
Plain CSSTailwind v4
Try it

Untitled UI Pro: 5,000+ React + Tailwind CSS v4 components · from $349 one-time

Untitled UI React · Affiliate link

Get Untitled UI Pro

The code

<section class="tcd-20 group/root w-full min-h-svh bg-[linear-gradient(150deg,var(--color-tcd20-fa),var(--color-tcd20-fb)_70%,var(--color-tcd20-fc))] font-tcd20-sans text-tcd20-ink antialiased" aria-labelledby="tcd-20-title">
  <div class="mx-auto grid min-h-svh max-w-[880px] content-center justify-items-center gap-[clamp(22px,4vw,36px)] px-[clamp(18px,5vw,56px)] py-14 text-center">
    <p class="flex items-center gap-2 text-sm font-bold tracking-[0.28em] uppercase"><span aria-hidden="true" class="size-3 rounded-full border-[3px] border-tcd20-ink"></span>Aperture</p>

    <div class="grid justify-items-center gap-3 transition duration-700 starting:translate-y-2 starting:opacity-0">
      <h2 id="tcd-20-title" class="font-tcd20-serif text-[clamp(40px,8vw,76px)] leading-[0.98] tracking-[-0.02em] text-balance"><span class="group-data-live/root:hidden">The archive opens <em>in</em></span><span class="hidden group-data-live/root:inline">The archive is <em>open</em></span></h2>
      <p class="max-w-[46ch] text-[15.5px] leading-relaxed text-tcd20-mut text-pretty"><span class="group-data-live/root:hidden">Forty years of Meridian's print catalogue, scanned, indexed and free to read.</span><span class="hidden group-data-live/root:inline">Forty years of print, indexed and searchable. Start anywhere.</span></p>
    </div>

    <div role="timer" class="w-full">
      <time datetime="" data-clock class="mx-auto grid max-w-[620px] grid-cols-4 gap-[clamp(6px,2vw,14px)] tabular-nums group-data-live/root:hidden">
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-d class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">04</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">days</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-h class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">11</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">hours</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-m class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">28</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">minutes</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-tcd20-ink py-[clamp(12px,3vw,22px)] text-white shadow-[0_20px_40px_-24px_rgb(20_18_26/0.7)]"><b data-s class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">05</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-white/70">seconds</i></span>
      </time>
      <p class="hidden items-center justify-center gap-2.5 font-tcd20-serif text-[clamp(26px,5vw,38px)] italic group-data-live/root:flex"><span aria-hidden="true" class="size-3 rounded-full bg-tcd20-ok animate-pulse motion-reduce:animate-none"></span>We're live — start reading</p>
    </div>

    <form data-form novalidate class="group/form grid w-full max-w-[480px] gap-2 text-left">
      <div class="grid gap-2 group-data-subscribed/form:hidden">
        <label for="tcd-20-email" class="text-[13px] font-semibold"><span class="group-data-live/root:hidden">Email me when it opens</span><span class="hidden group-data-live/root:inline">Get the weekly reading list</span></label>
        <div class="flex flex-wrap gap-2.5">
          <input id="tcd-20-email" type="email" inputmode="email" autocomplete="email" required placeholder="priya@fern.studio" class="peer min-h-12 min-w-0 flex-[1_1_220px] rounded-xl border border-tcd20-ink/20 bg-white/80 px-4 text-[15px] placeholder:text-tcd20-mut/70 transition focus-visible:border-tcd20-ink focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-tcd20-ink/30 user-invalid:border-tcd20-danger">
          <button type="submit" class="min-h-12 cursor-pointer rounded-xl bg-tcd20-ink px-5 text-[15px] font-semibold text-white transition hover:bg-tcd20-ink/88 active:scale-[0.98] focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-tcd20-ink"><span class="group-data-live/root:hidden">Notify me</span><span class="hidden group-data-live/root:inline">Subscribe</span></button>
          <p class="hidden w-full text-[12.5px] font-medium text-tcd20-danger peer-user-invalid:block">Enter a valid email address.</p>
        </div>
      </div>
      <p class="hidden items-center gap-2.5 rounded-xl border border-tcd20-ok/30 bg-tcd20-ok/10 px-4 py-3.5 text-[14px] font-semibold text-tcd20-ok-ink group-data-subscribed/form:flex transition duration-500 starting:opacity-0"><svg viewBox="0 0 16 16" width="16" height="16" aria-hidden="true"><path d="M3 8.4 6.4 11.5 13 4.8" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg><span data-thanks>You're on the list — one email on launch day.</span></p>
      <p class="text-center text-[12.5px] text-tcd20-mut">No newsletter, one message on launch day. <b data-count class="font-semibold text-tcd20-ink">2,140</b> people waiting.</p>
    </form>
    <output data-live aria-live="polite" class="sr-only"></output>
  </div>
</section>
@import "tailwindcss";

@theme {
  --color-tcd20-fa: #e7e2ff;
  --color-tcd20-fa: oklch(0.91 0.05 295);
  --color-tcd20-fb: #d9f2e6;
  --color-tcd20-fb: oklch(0.93 0.05 160);
  --color-tcd20-fc: #fdfbf6;
  --color-tcd20-fc: oklch(0.99 0.008 90);
  --color-tcd20-ink: #14121a;
  --color-tcd20-ink: oklch(0.17 0.02 290);
  --color-tcd20-mut: #534f68;
  --color-tcd20-mut: oklch(0.43 0.03 290);
  --color-tcd20-ok: #1f8a57;
  --color-tcd20-ok: oklch(0.55 0.13 155);
  --color-tcd20-ok-ink: #14603b;
  --color-tcd20-ok-ink: oklch(0.42 0.1 155);
  --color-tcd20-danger: #b3261e;
  --color-tcd20-danger: oklch(0.5 0.19 27);
  --font-tcd20-serif: 'Instrument Serif', Georgia, serif;
  --font-tcd20-sans: 'Instrument Sans', system-ui, sans-serif;
}

.tcd-20 {
  width: 100%;
  min-height: 100svh;
}
(() => {
  const root = document.querySelector('.tcd-20');
  if (!root || root.dataset.wired) return;
  root.dataset.wired = '1';
  const q = (s) => root.querySelector(s);
  const clock = q('[data-clock]'), live = q('[data-live]'), form = q('[data-form]'), email = q('#tcd-20-email');
  const pad = (n) => String(n).padStart(2, '0');
  const target = new Date(Date.now() + 4 * 86400e3 + 11 * 3600e3 + 28 * 60e3 + 5e3);
  let id = 0, seen = null, count = 2140;
  clock.dateTime = target.toISOString();
  const tick = () => {
    const ms = target - Date.now();
    if (ms <= 0) { root.setAttribute('data-live', ''); live.textContent = 'The archive is now open.'; return; }
    const s = Math.floor(ms / 1000);
    q('[data-d]').textContent = pad(Math.floor(s / 86400));
    q('[data-h]').textContent = pad(Math.floor(s / 3600) % 24);
    q('[data-m]').textContent = pad(Math.floor(s / 60) % 60);
    q('[data-s]').textContent = pad(s % 60);
    const b = ms < 60e3 ? 'm1' : ms < 3600e3 ? 'h1' : ms < 86400e3 ? 'd1' : 'far';
    if (b !== seen) { seen = b; live.textContent = { far: '', d1: 'The archive opens within a day.', h1: 'The archive opens within the hour.', m1: 'The archive opens in one minute.' }[b]; }
    id = setTimeout(tick, 1000 - (Date.now() % 1000));
  };
  form.addEventListener('submit', (e) => {
    e.preventDefault();
    if (!email.value || !email.checkValidity()) { email.focus(); live.textContent = 'Enter a valid email address.'; return; }
    count += 1; q('[data-count]').textContent = count.toLocaleString();
    q('[data-thanks]').textContent = "You're on the list — we'll email " + email.value + ' on launch day.';
    form.setAttribute('data-subscribed', '');
    live.textContent = 'Subscribed. You will get one email on launch day.';
  });
  tick();
  root.cleanup = () => clearTimeout(id);
})();

Setup — do this once per project

Skip this if your project already runs Tailwind v4.

1Load Tailwind
<script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>

Compiles in the browser — perfect for a CodePen or a quick test, not for production.

2Add the stylesheetRequiredthe @theme block is what makes the custom utilities exist
@import "tailwindcss";

@theme {
  --color-tcd20-fa: #e7e2ff;
  --color-tcd20-fa: oklch(0.91 0.05 295);
  --color-tcd20-fb: #d9f2e6;
  --color-tcd20-fb: oklch(0.93 0.05 160);
  --color-tcd20-fc: #fdfbf6;
  --color-tcd20-fc: oklch(0.99 0.008 90);
  --color-tcd20-ink: #14121a;
  --color-tcd20-ink: oklch(0.17 0.02 290);
  --color-tcd20-mut: #534f68;
  --color-tcd20-mut: oklch(0.43 0.03 290);
  --color-tcd20-ok: #1f8a57;
  --color-tcd20-ok: oklch(0.55 0.13 155);
  --color-tcd20-ok-ink: #14603b;
  --color-tcd20-ok-ink: oklch(0.42 0.1 155);
  --color-tcd20-danger: #b3261e;
  --color-tcd20-danger: oklch(0.5 0.19 27);
  --font-tcd20-serif: 'Instrument Serif', Georgia, serif;
  --font-tcd20-sans: 'Instrument Sans', system-ui, sans-serif;
}

.tcd-20 {
  width: 100%;
  min-height: 100svh;
}
3Fonts used by this demooptional — skip if you have your own type stack
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Instrument+Sans:wght@400;500;600;700&display=swap">

What changed in the port

Which parts became utilities, which stayed CSS, and why.

  • Five .hidden/textContent swaps at zero became one data-live attribute: both copies of each string sit in the markup and group-data-live/root: chooses, so the launched state is reviewable in HTML.
  • UI upgrade: Notify me is a real <form> that validates, confirms in place via data-subscribed (echoing the email back) and increments the waiting count.
  • UI upgrade: unit tiles are frosted glass with a solid seconds tile as the visual anchor; the headline is Instrument Serif with an italic accent word; the launched state shows a pulsing live dot.
  • Display type moved from a system Iowan/Playfair stack to Instrument Serif so the editorial look renders the same everywhere.
Paste this into ChatGPT, Claude, Cursor, or any coding assistant. The block below is pre-framed with everything the AI needs to integrate this demo into your project — markup, styles, scoping notes, and the source URL. Hit Copy and paste straight into your chat.
Here's a working CSS demo from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: Tailwind Coming Soon Page with Launch Countdown Timer
Source: https://codefronts.com/snippets/tailwind-css-countdown-timers/tailwind-coming-soon-page-launch-countdown/

The classic pre-launch splash, rebuilt: a wordmark, one serif headline, four frosted unit tiles for days, hours, minutes and seconds, and a single email field. Where most versions stall at zero, this one flips the whole page to a live state via data-live. New in the port: Notify me validates and confirms in place via data-subscribed, and the waiting count updates.
## HTML
```html
<section class="tcd-20 group/root w-full min-h-svh bg-[linear-gradient(150deg,var(--color-tcd20-fa),var(--color-tcd20-fb)_70%,var(--color-tcd20-fc))] font-tcd20-sans text-tcd20-ink antialiased" aria-labelledby="tcd-20-title">
  <div class="mx-auto grid min-h-svh max-w-[880px] content-center justify-items-center gap-[clamp(22px,4vw,36px)] px-[clamp(18px,5vw,56px)] py-14 text-center">
    <p class="flex items-center gap-2 text-sm font-bold tracking-[0.28em] uppercase"><span aria-hidden="true" class="size-3 rounded-full border-[3px] border-tcd20-ink"></span>Aperture</p>

    <div class="grid justify-items-center gap-3 transition duration-700 starting:translate-y-2 starting:opacity-0">
      <h2 id="tcd-20-title" class="font-tcd20-serif text-[clamp(40px,8vw,76px)] leading-[0.98] tracking-[-0.02em] text-balance"><span class="group-data-live/root:hidden">The archive opens <em>in</em></span><span class="hidden group-data-live/root:inline">The archive is <em>open</em></span></h2>
      <p class="max-w-[46ch] text-[15.5px] leading-relaxed text-tcd20-mut text-pretty"><span class="group-data-live/root:hidden">Forty years of Meridian's print catalogue, scanned, indexed and free to read.</span><span class="hidden group-data-live/root:inline">Forty years of print, indexed and searchable. Start anywhere.</span></p>
    </div>

    <div role="timer" class="w-full">
      <time datetime="" data-clock class="mx-auto grid max-w-[620px] grid-cols-4 gap-[clamp(6px,2vw,14px)] tabular-nums group-data-live/root:hidden">
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-d class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">04</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">days</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-h class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">11</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">hours</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-white/70 py-[clamp(12px,3vw,22px)] shadow-[0_20px_40px_-30px_rgb(20_18_26/0.5)] supports-[backdrop-filter:blur(1px)]:bg-white/50 supports-[backdrop-filter:blur(1px)]:backdrop-blur-md"><b data-m class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">28</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-tcd20-mut">minutes</i></span>
        <span class="grid gap-1.5 rounded-2xl border border-tcd20-ink/10 bg-tcd20-ink py-[clamp(12px,3vw,22px)] text-white shadow-[0_20px_40px_-24px_rgb(20_18_26/0.7)]"><b data-s class="font-tcd20-serif text-[clamp(38px,10vw,76px)] font-normal leading-none">05</b><i class="text-[10px] font-bold not-italic uppercase tracking-[0.18em] text-white/70">seconds</i></span>
      </time>
      <p class="hidden items-center justify-center gap-2.5 font-tcd20-serif text-[clamp(26px,5vw,38px)] italic group-data-live/root:flex"><span aria-hidden="true" class="size-3 rounded-full bg-tcd20-ok animate-pulse motion-reduce:animate-none"></span>We're live — start reading</p>
    </div>

    <form data-form novalidate class="group/form grid w-full max-w-[480px] gap-2 text-left">
      <div class="grid gap-2 group-data-subscribed/form:hidden">
        <label for="tcd-20-email" class="text-[13px] font-semibold"><span class="group-data-live/root:hidden">Email me when it opens</span><span class="hidden group-data-live/root:inline">Get the weekly reading list</span></label>
        <div class="flex flex-wrap gap-2.5">
          <input id="tcd-20-email" type="email" inputmode="email" autocomplete="email" required placeholder="priya@fern.studio" class="peer min-h-12 min-w-0 flex-[1_1_220px] rounded-xl border border-tcd20-ink/20 bg-white/80 px-4 text-[15px] placeholder:text-tcd20-mut/70 transition focus-visible:border-tcd20-ink focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-tcd20-ink/30 user-invalid:border-tcd20-danger">
          <button type="submit" class="min-h-12 cursor-pointer rounded-xl bg-tcd20-ink px-5 text-[15px] font-semibold text-white transition hover:bg-tcd20-ink/88 active:scale-[0.98] focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-tcd20-ink"><span class="group-data-live/root:hidden">Notify me</span><span class="hidden group-data-live/root:inline">Subscribe</span></button>
          <p class="hidden w-full text-[12.5px] font-medium text-tcd20-danger peer-user-invalid:block">Enter a valid email address.</p>
        </div>
      </div>
      <p class="hidden items-center gap-2.5 rounded-xl border border-tcd20-ok/30 bg-tcd20-ok/10 px-4 py-3.5 text-[14px] font-semibold text-tcd20-ok-ink group-data-subscribed/form:flex transition duration-500 starting:opacity-0"><svg viewBox="0 0 16 16" width="16" height="16" aria-hidden="true"><path d="M3 8.4 6.4 11.5 13 4.8" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg><span data-thanks>You're on the list — one email on launch day.</span></p>
      <p class="text-center text-[12.5px] text-tcd20-mut">No newsletter, one message on launch day. <b data-count class="font-semibold text-tcd20-ink">2,140</b> people waiting.</p>
    </form>
    <output data-live aria-live="polite" class="sr-only"></output>
  </div>
</section>
```
## CSS
```css
@import "tailwindcss";

@theme {
  --color-tcd20-fa: #e7e2ff;
  --color-tcd20-fa: oklch(0.91 0.05 295);
  --color-tcd20-fb: #d9f2e6;
  --color-tcd20-fb: oklch(0.93 0.05 160);
  --color-tcd20-fc: #fdfbf6;
  --color-tcd20-fc: oklch(0.99 0.008 90);
  --color-tcd20-ink: #14121a;
  --color-tcd20-ink: oklch(0.17 0.02 290);
  --color-tcd20-mut: #534f68;
  --color-tcd20-mut: oklch(0.43 0.03 290);
  --color-tcd20-ok: #1f8a57;
  --color-tcd20-ok: oklch(0.55 0.13 155);
  --color-tcd20-ok-ink: #14603b;
  --color-tcd20-ok-ink: oklch(0.42 0.1 155);
  --color-tcd20-danger: #b3261e;
  --color-tcd20-danger: oklch(0.5 0.19 27);
  --font-tcd20-serif: 'Instrument Serif', Georgia, serif;
  --font-tcd20-sans: 'Instrument Sans', system-ui, sans-serif;
}

.tcd-20 {
  width: 100%;
  min-height: 100svh;
}
```

## JavaScript
```js
(() => {
  const root = document.querySelector('.tcd-20');
  if (!root || root.dataset.wired) return;
  root.dataset.wired = '1';
  const q = (s) => root.querySelector(s);
  const clock = q('[data-clock]'), live = q('[data-live]'), form = q('[data-form]'), email = q('#tcd-20-email');
  const pad = (n) => String(n).padStart(2, '0');
  const target = new Date(Date.now() + 4 * 86400e3 + 11 * 3600e3 + 28 * 60e3 + 5e3);
  let id = 0, seen = null, count = 2140;
  clock.dateTime = target.toISOString();
  const tick = () => {
    const ms = target - Date.now();
    if (ms <= 0) { root.setAttribute('data-live', ''); live.textContent = 'The archive is now open.'; return; }
    const s = Math.floor(ms / 1000);
    q('[data-d]').textContent = pad(Math.floor(s / 86400));
    q('[data-h]').textContent = pad(Math.floor(s / 3600) % 24);
    q('[data-m]').textContent = pad(Math.floor(s / 60) % 60);
    q('[data-s]').textContent = pad(s % 60);
    const b = ms < 60e3 ? 'm1' : ms < 3600e3 ? 'h1' : ms < 86400e3 ? 'd1' : 'far';
    if (b !== seen) { seen = b; live.textContent = { far: '', d1: 'The archive opens within a day.', h1: 'The archive opens within the hour.', m1: 'The archive opens in one minute.' }[b]; }
    id = setTimeout(tick, 1000 - (Date.now() % 1000));
  };
  form.addEventListener('submit', (e) => {
    e.preventDefault();
    if (!email.value || !email.checkValidity()) { email.focus(); live.textContent = 'Enter a valid email address.'; return; }
    count += 1; q('[data-count]').textContent = count.toLocaleString();
    q('[data-thanks]').textContent = "You're on the list — we'll email " + email.value + ' on launch day.';
    form.setAttribute('data-subscribed', '');
    live.textContent = 'Subscribed. You will get one email on launch day.';
  });
  tick();
  root.cleanup = () => clearTimeout(id);
})();
```

How this works

Plan for zero. The day the countdown ends is the day the page gets the most traffic. At zero the script sets data-live on the root; the headline, sub-copy and CTA swap, and the tiles give way to a We're live banner:

<time class="grid group-data-live/root:hidden">…</time>
<p class="hidden group-data-live/root:flex">We're live</p>

A form that answers. Notify me checks validity; on success the form gets data-subscribed and shows a confirmation in place, and the waiting count ticks up. Invalid input is flagged by :user-invalid only after the user interacts.

Real deadline. The target is a Date written into <time datetime> at load; the tick is drift-corrected like every timer in this collection.

Make it yours

  • Point target at your launch instant.
  • Wire the form to your ESP by replacing the success branch with a fetch.
  • Retint the field gradient via --color-tcd20-fa / -fb.
  • Remove the seconds tile for a calmer page — change grid-cols-4 to grid-cols-3.

Gotchas — read before shipping

  • A page that stalls at 00:00:00 on launch day looks broken — always ship the live state.
  • Do not reset the timer per visitor; everyone must see the same launch moment.
  • Ask for one thing (email). Every extra field costs sign-ups.
  • Frosted tiles need a solid fallback colour for contrast where blur is unsupported.

Browser support

ChromeSafariFirefoxEdge
119+16.5+128+119+

:user-invalid sets the floor for the inline hint; elsewhere the script's own validation message still appears. Blur is gated by supports-[…]:.

Techniques used in this demo

Utilitiesfirst-class utility or variant

backdrop-filtertw ↗:user-invalidtw ↗@starting-styletw ↗

Search CodeFronts

Loading…

↑↓ navigate↵ selectesc closeOpen full search page →