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<style> body { background: #111; color: #3ba55d; font-family: monospace; padding: 2rem; } h1 { border-bottom: 1px solid #333; padding-bottom: 0.5rem; } </style> <h1>Heisen Code Sandbox</h1> <p id="msg">Script initialized dynamically.</p> <script> console.log("Sandbox loaded!"); </script>
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