我正在开发一个新站点，但 css 菜单有问题。通过示例更容易解释：这是该站点的链接：http ://www.webau.net/CSFF/index.asp
在“主页”父菜单项下，我有以下配置：
Top level menu (parent)
Submenu 1 (child 1)
Submenu 2 (grandchild 1)
Submenu 3 (child 2)
Submenu 4 (child 3)
相反，它出现在这样的页面上，孙子 1 看起来取代了子 2 菜单：
Top level menu (parent)
Submenu 1 (child 1)
Submenu 2 (grandchild 1)
Submenu 4 (child 3)
我可以看到子菜单 2 的列表略有偏移。这让我认为这是试图不恰当地显示孙子。
所以我假设我有两个问题..
首先，当您将鼠标悬停在父菜单项上时，第三层菜单（孙子菜单 2）同时显示第二层菜单（子子菜单 1、3、4）。
其次，由于某种原因，孙子菜单 2 项正在取代子子菜单 3（放置在其上）。
我认为当我更正孙子菜单的显示时，问题二将得到解决。
有人可以帮我弄清楚如何添加新的 css 代码来处理第三层或多层菜单......所以它们会被隐藏，直到他们自己的父级悬停，然后显示在它的父级子菜单列的右侧？
再次感谢您的帮助。阳光奥兹
为了您的方便： HTML 代码：
<div id="navcontainer">
<div id="navsection">
<ul>
<li id="navactive"><a class="current" href="#">Home</a>
<ul>
<li><a href="#">submenu 1</a>
<ul>
<li><a href="#">submenu 2</a></li>
</ul>
</li>
<li><a href="#">submenu 3</a></li>
<li><a href="#">submenu 4</a></li>
</ul>
</li>
<li><... rest of menu items not needed for example>
</li>
</ul>
</div>
</div>
CSS 代码：
#navcontainer
{
width: 711px;
height: 25px;
text-align: center;
margin: 0px auto; /*Center container on page*/
clear: both;
background-color: #129F9F;
border: 3px solid #FFFFFF;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-o-border-radius: 5px;
-ms-border-radius: 5px;
border-radius: 5px;
/* IE10 Consumer Preview */
background-image: -ms-linear-gradient(top, #16ACAC 0%, #0D6F6F 100%);
/* Mozilla Firefox */
background-image: -moz-linear-gradient(top, #16ACAC 0%, #0D6F6F 100%);
/* Opera */
background-image: -o-linear-gradient(top, #16ACAC 0%, #0D6F6F 100%);
/* Webkit (Safari/Chrome 10) */
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #16ACAC), color-stop(1, #0D6F6F));
/* Webkit (Chrome 11+) */
background-image: -webkit-linear-gradient(top, #16ACAC 0%, #0D6F6F 100%);
/* W3C Markup, IE10 Release Preview */
background-image: linear-gradient(to bottom, #16ACAC 0%, #0D6F6F 100%);
}
#navsection
{
height: 24px;
line-height: 24px;
font-size: 12px;
position: relative;
}
#navsection ul
{
padding: 0px 0px 0px 35px; /* padding on left to get nav menu to center.. since it has a float left to make it display properly*/
list-style: none;
}
#navsection ul li
{
padding: 0;
margin: 0;
border-right: 2px solid #129F9F;
float: left;
}
#navsection ul li.navcontact /* to stop right border at end of nav line */
{
padding: 0;
margin: 0;
border-right: none;
float: left;
}
#navsection ul li a
{
color: #FFF;
display: block;
text-decoration: none;
padding: 0 15px;
}
#navsection > ul > li > a:hover, #navsection > ul > li:hover > a
{
text-decoration: none;
color: #EAA339;
/* IE10 Consumer Preview */
background-image: -ms-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Mozilla Firefox */
background-image: -moz-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Opera */
background-image: -o-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Webkit (Safari/Chrome 10) */
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #0D6F6F), color-stop(1, #16ACAC));
/* Webkit (Chrome 11+) */
background-image: -webkit-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* W3C Markup, IE10 Release Preview */
background-image: linear-gradient(to bottom, #0D6F6F 0%, #16ACAC 100%);
}
#navsection > ul > li > a.current:hover, #navactive a.current:link, #navactive a:visited, #navactive > ul li a:hover, #navsection a:hover
{
text-decoration: none;
color: #EAA339;
/* IE10 Consumer Preview */
background-image: -ms-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Mozilla Firefox */
background-image: -moz-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Opera */
background-image: -o-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* Webkit (Safari/Chrome 10) */
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #0D6F6F), color-stop(1, #16ACAC));
/* Webkit (Chrome 11+) */
background-image: -webkit-linear-gradient(top, #0D6F6F 0%, #16ACAC 100%);
/* W3C Markup, IE10 Release Preview */
background-image: linear-gradient(to bottom, #0D6F6F 0%, #16ACAC 100%);
}
#navsection ul li ul
{
display: none;
width: auto;
position: absolute;
padding: 0px;
margin: 0px;
}
#navsection ul li:hover ul
{
display: block;
position: absolute;
margin: 0;
padding: 0;
}
#navsection ul li:hover li
{
float: none;
list-style: none;
margin: 0px;
}
#navsection ul li:hover li
{
font-size: 12px;
height: 24px;
background: #54C4C4;
border: 1px solid #FFFFFF;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-o-border-radius: 5px;
-ms-border-radius: 5px;
border-radius: 5px;
}
#navsection ul li:hover li a
{
font-size: 11px;
color: #fff;
padding: 0px;
display: block;
width: 150px;
}
#navsection ul li li a:hover
{
font-size: 11px;
height: 24px;
color:#EAA339;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-o-border-radius: 5px;
-ms-border-radius: 5px;
border-radius: 5px;
}