有没有办法在导航列表项上添加“悬停时的下拉菜单”？

<ul class="navigation">
  <li><a href="#">首页</a></li>
  <li><a href="#">产品</a>
    <ul class="dropdown">
      <li><a href="#">产品1</a></li>
      <li><a href="#">产品2</a></li>
      <li><a href="#">产品3</a></li>
    </ul>
  </li>
  <li><a href="#">关于我们</a></li>
  <li><a href="#">联系我们</a></li>
</ul>

.navigation {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.navigation li {
  display: inline-block;
  position: relative;
}

.navigation li a {
  display: block;
  padding: 10px;
  text-decoration: none;
  color: #000;
}

.navigation li:hover .dropdown {
  display: block;
}

.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #fff;
  padding: 10px;
}

.dropdown li {
  display: block;
}