Exploding like buttonOne-line

Nemotron 3 Nano Omni (free)

by NVIDIAReasoningClean

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

How it went

Total time: 4.6 s
Cost: $0
Output tokens: 571
Spent thinking: 0 tokens
Speed: 132.1 tok/s
Console errors: 0

First token after: 327 ms
First visible text after: 327 ms
Prompt tokens: 375
Code size: 1.8 KB
Finish reason: stop
Served by: Nvidia
Model id: nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:free
Reasoning sent: {"effort":"none"}
Max output: 32,000 tokens
Generated: Nov 9, 2026

What it was asked

The prompt

“a "like" button in pure CSS, no JavaScript, that does a crazy animation when you click it”

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 · 82 lines

Download

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Pure CSS Like Button Animation</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      background: #f0f0f0;
      font-family: Arial, sans-serif;
    }
    .like-button {
      background: #e74c3c;
      color: white;
      border: none;
      border-radius: 50px;
      padding: 15px 35px;
      font-size: 1.2rem;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .like-button::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(45deg, #c0392b, #a93226);
      opacity: 0;
      transform: scale(0.8);
      transition: opacity 0.3s ease, transform 0.3s ease;
    }
    .like-button:hover {
      transform: scale(1.05);
      box-shadow: 0 6px 15px rgba(0,0,0,0.2);
    }
    .like-button:active {
      transform: scale(0.95);
    }
    .like-button.clicked {
      animation: pulse 0.6s ease-out;
    }
    @keyframes pulse {
      0% {
        transform: scale(1);
        opacity: 1;
      }
      50% {
        transform: scale(1.2);
        opacity: 0.8;
      }
      100% {
        transform: scale(1);
        opacity: 1;
      }
    }
  </style>
</head>
<body>
  <button class="like-button">Like</button>
  <script>
    document.querySelector('.like-button').addEventListener('click', function() {
      this.classList.add('clicked');
      setTimeout(() => {
        this.classList.remove('clicked');
      }, 600);
    });
  </script>
</body>
</html>