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HTML/CSS/JS Playground
HTML/CSS/JS 在线 Playground | HTML/CSS/JS Playground
Write HTML, CSS, and JavaScript code with instant live preview. No setup needed.
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<div class="container"> <h1>Hello World!</h1> <p>Edit this code and see live preview.</p> <button onclick="document.querySelector('.container').style.background='linear-gradient(135deg,#667eea,#764ba2)'"> Click Me </button> </div> <style> .container { font-family: system-ui, sans-serif; max-width: 400px; margin: 40px auto; padding: 24px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); text-align: center; background: #f8fafc; } h1 { color: #1e293b; margin-bottom: 8px; } p { color: #64748b; margin-bottom: 16px; } button { padding: 8px 20px; border: none; border-radius: 8px; background: #3b82f6; color: white; cursor: pointer; font-size: 14px; } button:hover { background: #2563eb; } </style>
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