Live Code Preview – Multi Device

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>My Page</title>
</head>
<body>
  <div class="card">
    <h1>Hello Developer 👋</h1>
    <p>Edit this code and see live preview on different devices.</p>
    <button id="btn">Click me</button>
  </div>
</body>
</html>

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, sans-serif;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  max-width: 340px;
  width: 100%;
  box-shadow: 0 20px 40px rgba(0,0,0,.15);
  text-align: center;
}
h1 { font-size: 1.4rem; margin-bottom: 10px; color: #0f172a; }
p { color: #64748b; margin-bottom: 18px; line-height: 1.5; }
button {
  background: #8b5cf6;
  color: #fff;
  border: 0;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.1s;
}
button:active { transform: scale(0.97); }

document.getElementById('btn')?.addEventListener('click', () => {
  alert('Working! Your code is running live.');
});

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390 × 844 · Samsung Galaxy S23 Ultra

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Live Code Preview – Multi Device

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