Untitled

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>DevTools Demo</title>
  <style>
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      font-family: Arial, sans-serif;
    }
    .assistant-box {
      text-align: center;
    }
    .assistant-box button {
      display: block;
      margin: 8px auto;
      padding: 10px 16px;
      border: 1px solid #ccc;
      border-radius: 6px;
      background: #f9f9f9;
      cursor: pointer;
    }
    .assistant-box button:hover {
      background: #e8f0fe;
    }
  </style>
</head>
<body>
  <div class="assistant-box">
    <h2>How can I help you?</h2>
    <button>What can you help me with?</button>
    <button>Why isn’t this element visible?</button>
    <button>How do I center this element?</button>
  </div>
</body>
</html>
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