如何使用HTML和CSS创建一个响应式导航菜单布局

<nav>
  <ul>
    <li><a href="#home">首页</a></li>
    <li><a href="#about">关于</a></li>
    <li><a href="#services">服务</a></li>
    <li><a href="#portfolio">作品集</a></li>
    <li><a href="#contact">联系方式</a></li>
  </ul>
</nav>

nav {
  background-color: #f1f1f1;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

nav li {
  float: left;
}

nav li a {
  display: block;
  padding: 8px;
  text-decoration: none;
  color: #000;
}

nav li a:hover {
  background-color: #DDD;
}


@media screen and (max-width: 600px) {
  nav ul {
    display: none;
  }
}

<nav>
  <input type="checkbox" id="menu-toggle" />
  <label for="menu-toggle" class="menu-icon">&#9776;</label>

  <ul>
    <li><a href="#home">首页</a></li>
    <li><a href="#about">关于</a></li>
    <li><a href="#services">服务</a></li>
    <li><a href="#portfolio">作品集</a></li>
    <li><a href="#contact">联系方式</a></li>
  </ul>
</nav>

nav ul {
  display: flex;
  justify-content: flex-end;
}

nav li {
  display: inline-block;
}

nav li a {
  display: block;
  padding: 8px;
  text-decoration: none;
  color: #000;
}

nav li a:hover {
  background-color: #ddd;
}

.menu-icon {
  display: none;
}


@media screen and (max-width: 600px) {
  nav ul {
    display: none;
  }

  .menu-icon {
    display: inline-block;
    cursor: pointer;
    padding: 8px;
    float: right;
  }

  #menu-toggle:checked ~ ul {
    display: flex;
    flex-direction: column;
  }

  #menu-toggle:checked ~ .menu-icon:before {

  }
}