你好，当我将鼠标悬停在父项上时，父项是否也会向上滑动，从而使下拉菜单的父项位于其上方？这是我的代码，但我似乎无法让它工作。这是我想要的视觉菜单 http://imgur.com/om9mvdG (第二张图)
.nav ul {
*zoom: 1;
list-style: none;
margin: 0;
padding: 0;
background: #333;
}
.nav ul:before,
.nav ul:after {
content: "";
display: table;
}
.nav ul:after {
clear: both;
}
.nav ul > li {
float: left;
position: relative;
}
.nav a {
display: block;
padding: 10px 20px;
line-height: 1.2em;
color: #fff;
border-left: 1px solid #595959;
}
.nav a:hover {
text-decoration: none;
background: #595959;
}
.nav li ul {
background: #273754;
position: absolute;
left: 0;
bottom: 36px;
z-index: 1;
}
.nav li ul li {
width: 100%;
overflow: hidden;
height: 0;
-webkit-transition: height 200ms ease-in;
-moz-transition: height 200ms ease-in;
-o-transition: height 200ms ease-in;
transition: height 200ms ease-in;
}
.nav li ul a {
border: none;
}
.nav li ul a:hover {
background: rgba(0, 0, 0, 0.2);
}
.nav ul > li:hover ul li {
height: 36px;
}<ul>
<li>
<a href="#">Nav Item</a>
<ul>
<li><a href="#">Subnav</a>
</li>
<li><a href="#">Subnav</a>
</li>
<li><a href="#">Subnav</a>
</li>
</ul>
</li>
<li>
<a href="#">Nav Item</a>
<ul>
<li><a href="#">Subnav</a>
</li>
<li><a href="#">Subnav</a>
</li>
<li><a href="#">Subnav</a>
</li>
</ul>
</li>
</ul>
</nav>最佳答案
将此 css 添加到您现有的代码中。这是你想要的吗？
http://codepen.io/anon/pen/jbBgdg
li>ul {
display: none;
}
a:hover~ul {
display: block;
}
关于html - 父项下拉子菜单，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32946919/