HTML Preview Split Pane

HTML Editor

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Preview</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            padding: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            margin: 0;
            min-height: 100vh;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        h1 { color: #333; margin-bottom: 20px; }
        p { color: #666; margin-bottom: 15px; }
        .highlight {
            background: #f0f8ff;
            padding: 15px;
            border-left: 4px solid #667eea;
            margin: 20px 0;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Welcome to HTML Preview!</h1>
        <p>This is a live preview of your HTML code. Edit the code on the left to see changes here instantly.</p>
        <div class="highlight">
            <p><strong>Try editing:</strong> Change this text, add new elements, or modify the styles!</p>
        </div>
        <p>The preview updates automatically as you type. Perfect for rapid prototyping and testing.</p>
    </div>
</body>
</html>