html - 如何在下拉菜单中制作下拉菜单？

Question

我正在为网站制作下拉菜单。我让第一个部分工作了，但是当我想让一个元素在其右侧显示其他选项时，它就是不工作。

这只是一些基本的 HTML 和 CSS 设置，我只是一个初学者。我尝试整理代码并以尽可能简单的方式进行。

li a, dropbtn {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover, .dropdown:hover .dropbtn {
  background-color: #111;
}


li.dropdown {
  display: inline-block;

}

.dropdown:hover .dropdown-content {
  display: block;
}


.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;

}

.two {
   display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
margin-top: -40px;
margin-left: 160px;

}

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;


}

.dropdown-content a:hover {

  background-color: #f1f1f1;

  }

<!-- About section -->
<li class="dropdown">
  <a class="dropbtn">About</a>
    <div class="dropdown-content">
      <a href="mission.html">Mission</a>	
            <div class="two">
              <a href="team.html">Team</a>
            </div>		

      <a href="mission.html">Our Story</a>
      <a href="mission.html">Partners</a>
      <a href="team.html">Team</a>
    </div>
</li>

我想了解我做错了什么，以及我该如何解决这个问题。

Answer 1

在css中使用+号选择子菜单，使其成为display:block。检查以下代码:

.dropdown-content a:hover + div {
   display:block;
}

请参阅下面的代码段:

li a, dropbtn {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  background-color:gray;
}

li a:hover, .dropdown:hover .dropbtn {
  background-color: #111;
}


li.dropdown {
  display: inline-block;

}

.dropdown:hover .dropdown-content {
  display: block;
}


.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;

}

.two {
   display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
margin-top: -40px;
margin-left: 160px;

}

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;


}

.dropdown-content a:hover {

  background-color: #f1f1f1;

  }
  
.dropdown-content a:hover + div {
   display:block;
}

<!-- About section -->
<li class="dropdown">
  <a class="dropbtn">About</a>
    <div class="dropdown-content">
      <a href="mission.html">Mission</a>	
            <div class="two">
              <a href="team.html">Team</a>
            </div>		

      <a href="mission.html">Our Story</a>
      <a href="mission.html">Partners</a>
      <a href="team.html">Team</a>
      	
            <div class="two">
              <a href="ceo.html">CEO</a>
            </div>		

    </div>
</li>