North Mini Code (free)

by CohereReasoningClean

Running live in a sandboxed frame. Click inside it before using the keyboard.

How it went

Total time: 7.1 s
Cost: $0
Output tokens: 1,889
Spent thinking: 0 tokens
Speed: 276 tok/s
Console errors: 0

First token after: 248 ms
First visible text after: 248 ms
Prompt tokens: 484
Code size: 5.5 KB
Finish reason: stop
Served by: Cohere
Model id: cohere/north-mini-code:free
Reasoning sent: {"effort":"none"}
Max output: 32,000 tokens
Generated: Nov 9, 2026

What it was asked

The prompt

Create a set of four animated weather cards (sunny, rainy, snowy, stormy), made with HTML and CSS only. Requirements: - Absolutely no JavaScript: the file must not contain any <script> tag or inline event handler. - No images, no SVG, no icon fonts: every weather icon is built from HTML elements and pseudo-elements styled with CSS. - Each card shows an animated icon (rotating sun rays, falling rain drops, drifting snowflakes, flashing lightning), a city name, a temperature and a short description. - Each card has its own background gradient matching the weather. - The cards are displayed in a responsive grid (4 per row on desktop, stacked on mobile) and lift up on hover. - Smooth infinite animations using @keyframes, and respect prefers-reduced-motion.

System prompt, sent with every prompt

You are generating a self-contained web demo. It will be rendered automatically in a sandboxed iframe and compared side by side with the output of other AI models given the exact same task.

Output rules:
- Reply with exactly ONE fenced code block containing the complete file: ```html (or ```svg when the task asks for an SVG). No text before or after the code block.
- Everything must be inline: CSS in <style>, JavaScript in <script>. No external files, images, fonts or network requests, except the CDN URLs explicitly allowed by the task.
- Do not use localStorage, sessionStorage, cookies, IndexedDB, alert(), confirm(), prompt() or window.open(): they are blocked in the sandbox and will throw.
- The page must look right in a 1280×800 viewport and adapt gracefully down to 375px wide. No horizontal scrollbar.
- Something meaningful must be visible on first paint: a screenshot is taken automatically about 3 seconds after load, without any interaction.
- Everything that makes the demo interesting must be visible within the first seconds: nothing hidden behind a high score, a later level or a long play session.
- Games must start in a self-playing demo mode (a simple AI plays) behind a "Click or press a key to start" message, so the game can be judged in action without playing.
- The iframe only receives keyboard events after the user clicks it: if the demo uses the keyboard, display a clear "Click or press a key to start" message.
- The code must run with zero errors in the console of the latest Chrome.

Code run-1.html · 240 lines

Download

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Animated Weather Cards</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
/* CSS Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html, body {
  height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: #f0f2f5;
  color: #333;
  line-height: 1.4;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Grid container */
.weather-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* Single card */
.card {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

/* Weather icon wrapper */
.icon {
  width: 100px;
  height: 100px;
  margin-bottom: 1rem;
  position: relative;
}

/* --- Sunny --- */
.card.sunny { background: linear-gradient(135deg, #fceabb, #f8b500); }
.card.sunny .icon::before {
  content: "";
  position: absolute;
  width: 70px;
  height: 70px;
  background: #ffd700;
  border-radius: 50%;
  top: 15px; left: 15px;
  box-shadow: 0 0 10px rgba(255,215,0,0.7);
}
.card.sunny .icon::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  background: radial-gradient(rgba(255,215,0,0.8), transparent 70%);
  top: -10px; left: -10px;
  animation: rotateSun 6s linear infinite;
}
@keyframes rotateSun {
  to { transform: rotate(360deg); }
}

/* --- Rainy --- */
.card.rainy { background: linear-gradient(135deg, #a1c4fd, #c2e9fb); }
.card.rainy .icon {
  width: 120px;
  height: 60px;
}
.card.rainy .drop {
  position: absolute;
  width: 6px;
  height: 20px;
  background: #6bb6d6;
  border-radius: 3px;
  opacity: 0.7;
  animation: fall linear infinite;
}
.card.rainy .drop:nth-child(1) { left: 20px; animation-duration: 0.9s; animation-delay: 0s; }
.card.rainy .drop:nth-child(2) { left: 50px; animation-duration: 0.7s; animation-delay: 0.2s; }
.card.rainy .drop:nth-child(3) { left: 80px; animation-duration: 1.1s; animation-delay: 0.4s; }
@keyframes fall {
  to { transform: translateY(45px); opacity: 0; }
}

/* --- Snowy --- */
.card.snowy { background: linear-gradient(135deg, #e0f7fa, #4dd0e1); }
.card.snowy .icon {
  width: 100px;
  height: 100px;
}
.card.snowy .flake {
  position: absolute;
  width: 12px; height: 12px;
  background: #fff;
  border-radius: 50%;
  opacity: 0.9;
  animation: drift linear infinite;
}
.card.snowy .flake:nth-child(1) { left: 10px; animation-duration: 4s; animation-delay: 0s; }
.card.snowy .flake:nth-child(2) { left: 45px; animation-duration: 3.5s; animation-delay: 0.5s; }
.card.snowy .flake:nth-child(3) { left: 80px; animation-duration: 5s; animation-delay: 1s; }
@keyframes drift {
  0% { transform: translateY(-20px) translateX(0); }
  50% { transform: translateY(20px) translateX(10px); }
  100% { transform: translateY(-20px) translateX(-10px); opacity: 0; }
}

/* --- Stormy --- */
.card.stormy { background: linear-gradient(135deg, #434343, #000000); }
.card.stormy .icon {
  width: 100px; height: 100px;
}
.card.stormy .lightning {
  position: absolute;
  width: 4px; height: 40px;
  background: #ffeb3b;
  left: 48px; top: 0;
  border-radius: 2px;
  opacity: 0;
  animation: flash 1.5s steps(2, end) infinite;
}
.card.stormy .lightning::before,
.card.stormy .lightning::after {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 20px solid #ffeb3b;
  left: -2px; top: 40px;
  opacity: 0;
  animation: flash 1.5s steps(2, end) infinite;
}
.card.stormy .lightning::after {
  transform: rotate(180deg);
  left: auto; right: -2px;
}
@keyframes flash {
  0%, 100% { opacity: 0; }
  5%, 15% { opacity: 1; }
}

/* Text styles */
.city {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.temp {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
}
.desc {
  font-size: 0.9rem;
  color: #555;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .weather-grid {
    grid-template-columns: 1fr;
    margin: 1rem;
  }
}
</style>
</head>
<body>

<div class="weather-grid">
  <article class="card sunny">
    <div class="icon"></div>
    <div class="city">Los Angeles</div>
    <div class="temp">28°C</div>
    <div class="desc">Sunny and bright</div>
  </article>

  <article class="card rainy">
    <div class="icon">
      <div class="drop"></div>
      <div class="drop"></div>
      <div class="drop"></div>
    </div>
    <div class="city">London</div>
    <div class="temp">15°C</div>
    <div class="desc">Light showers</div>
  </article>

  <article class="card snowy">
    <div class="icon">
      <div class="flake"></div>
      <div class="flake"></div>
      <div class="flake"></div>
    </div>
    <div class="city">Moscow</div>
    <div class="temp">-5°C</div>
    <div class="desc">Heavy snow</div>
  </article>

  <article class="card stormy">
    <div class="icon">
      <div class="lightning"></div>
    </div>
    <div class="city">Tokyo</div>
    <div class="temp">18°C</div>
    <div class="desc">Thunderstorm</div>
  </article>
</div>

</body>
</html>