client.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>WebSocket Chat</title>
  <link rel="stylesheet" href="client.css">
</head>
<body>
  <h1>WebSocket Chat</h1>
  <ul id="messageList"></ul>
  <input type="text" id="messageInput" placeholder="Type your message">
  <button onclick="sendMessage()">Send</button>

  <script src="client.js"></script>
</body>
</html>