我找到了一个不错的下拉菜单，并按照我的需要设计了它的样式。现在我只需要添加一件事。 单击顶部链接后，子菜单应保持事件状态并且不会消失。
<!DOCTYPE>
<html>
<head>
<style>
#menu{
font-family: Geneva, Arial, Helvetica, sans-serif;
position: absolute;
top:100px;
width: 1100px;
height: 70px;
background-color: #484441;
color: #8C8985;
font-weight: bold;
clear: both;
text-align: center;
vertical-align: middle;
line-height: 70px;
}
/* DROPLINE MENU START*/
ul#nav {
float: left;
width: 1100px;
margin: 0;
padding: 0;
list-style: none;
background: #484441 url(../img/menu-parent.png) repeat-x;
-moz-border-radius-topright: 10px;
-webkit-border-top-right-radius: 10px;
-moz-border-radius-topleft: 10px;
-webkit-border-top-left-radius: 10px;
}
ul#nav li {
display: inline;
}
/* DROPLINE MENU Level 1*/
ul#nav li a {
float: left;
font: .7em arial,verdana,tahoma,sans-serif;
line-height: 70px;
color: #fff;
text-decoration: none;
text-shadow: 1px 1px 1px #8C8985;
margin: 0;
padding: 0 30px;
background: #484441 url(img/mainarrow.png) no-repeat;
-moz-border-radius-topright: 40px;
-webkit-border-top-right-radius: 40px;
-moz-border-radius-topleft: 40px;
-webkit-border-top-left-radius: 40px;
border-top-left-radius: 40px; /*IE fix*/
border-top-right-radius: 40px; /*IE fix*/
}
/* APPLIES THE ACTIVE STATE */
ul#nav .current a, ul#nav li:hover > a {
color: #EAF4EF;
text-decoration: none;
text-shadow: 1px 1px 1px #330000;
background: #330000;
-moz-border-radius-topright: 40px;
-webkit-border-top-right-radius: 40px;
-moz-border-radius-topleft: 40px;
-webkit-border-top-left-radius: 40px;
border-bottom-right-radius: 40px; /*IE fix*/
border-bottom-left-radius: 40px; /*IE fix*/
background: #6D6967 url('img/arrowup.png') no-repeat;
}
/* THE SUBMENU LIST HIDDEN BY DEFAULT */
ul#nav ul {
display: none;
}
/* WHEN THE FIRST LEVEL MENU ITEM IS HOVERED, THE CHILD MENU APPEARS */
ul#nav li:hover > ul {
position: absolute;
display: block;
width: 1060px;
height: 25px;
position: absolute;
margin: 70px 0 0 0;
background: #EAF4EF /*url(img/subarrow.png)*/ no-repeat;
border-bottom-right-radius: 0px; /*IE fix*/
border-bottom-left-radius: 0px; /*IE fix*/
-moz-border-radius-bottomright: 0px;
-webkit-border-bottom-right-radius: 0px;
-moz-border-radius-bottomleft: 0px;
-webkit-border-bottom-left-radius: 0px;
z-index: 999;
}
ul#nav li:hover > ul li a {
float: left;
font: .7em arial,verdana,tahoma,sans-serif;
line-height: 25px;
color: #525453;
text-decoration: none;
/* text-shadow: 1px 1px 1px #110000;*/
margin: 0px;
padding: 0px 28px 0px 0px;
background: #EAF4EF /*url(../img/menu-child.png) repeat-x*/;
}
ul#nav li:hover > ul li a:hover {
color: #979898;
text-decoration: none;
text-shadow: none;
}
/* DROPLINE MENU End*/
</style>
</head>
<body>
<div id="menu">
<ul id="nav">
<li><a href="#">TopLink1</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink2</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink3</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
<li><a href="#">TopLink</a>
<ul>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
<li><a href="#">Sublink</a></li>
</ul>
</li>
</ul>
</div><!-- menu -->
</body>
</html>
我尝试使用 active 伪类，但我仍然没有成功...有人有想法吗？
最佳答案
如果没有一点 JavaScript，我认为这是不可能的。我会在单击菜单项时简单地添加一个相应的类，然后在 CSS 中使用此类。
关于单击后 CSS 菜单不会保持事件状态，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20048533/