显示导航栏，但不显示右侧栏按钮

<div class="navbar">
  <a href="#" class="logo">Logo</a>
  <nav>
    <ul>
      <li><a href="#">Home</a></li>
      <li><a href="#">About</a></li>
      <li><a href="#">Services</a></li>
      <li><a href="#">Contact</a></li>
    </ul>
  </nav>
</div>

.navbar {
  background-color: #f2f2f2;
  padding: 10px;
  display: flex;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: bold;
  color: #333;
  text-decoration: none;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav ul li {
  margin-right: 10px;
}

nav ul li a {
  color: #333;
  text-decoration: none;
}

nav ul li a:hover {
  color: #666;
}

// 获取导航栏和按钮元素
const navbar = document.querySelector('.navbar');
const button = document.querySelector('.button');

// 隐藏按钮
button.style.display = 'none';

// 显示按钮
button.style.display = 'block';