style.css

body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
  }
  
  .chat-container {
    max-width: 600px;
    margin: 50px auto;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .chat-header {
    background-color: #007bff;
    color: #fff;
    padding: 15px;
    text-align: center;
  }
  
  .chat-messages {
    padding: 15px;
    max-height: 300px;
    overflow-y: auto;
  }
  
  .chat-input {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-top: 1px solid #ddd;
  }
  
  input {
    flex-grow: 1;
    padding: 10px;
  }
  
  button {
    padding: 10px 15px;
    background-color: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
  }