如何使用HTML、CSS和jQuery制作一个响应式的滑动菜单

<div class="menu-container">
  <div class="menu-toggle">
    <span class="bar"></span>
    <span class="bar"></span>
    <span class="bar"></span>
  </div>
  <ul class="menu">
    <li><a href="#">首页</a></li>
    <li><a href="#">关于</a></li>
    <li><a href="#">服务</a></li>
    <li><a href="#">联系</a></li>
  </ul>
</div>

.menu-container {
  position: relative;
}

.menu-toggle {
  display: block;
  cursor: pointer;
  padding: 10px;
  background-color: #333;
  color: #fff;
}

.bar {
  display: block;
  width: 30px;
  height: 4px;
  background-color: #fff;
  margin-bottom: 6px;
}

.menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: #333;
  color: #fff;
}

.menu li {
  padding: 10px;
  border-bottom: 1px solid #555;
}

@media (min-width: 768px) {
  .menu-toggle,
  .menu {
    display: none;
  }

  .menu-container {
    position: static;
  }

  .menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: transparent;
    color: #333;
  }

  .menu li {
    border-bottom: none;
  }
}

$(function() {
  $('.menu-toggle').on('click', function() {
    $('.menu').slideToggle(300);
  });
});