我有一个ul
列表,其中包含嵌套的ul
元素。目前它深入3级。 (主导航,小孩,孙子)。我似乎无法让下拉列表工作。不幸的是,我没有能力将id放在(ul)项目中。我能做的最好的事情是将ul
包裹在div
的{{1}}上。知道我怎么能这样做吗?这是我正在使用的代码,如果我的CSS看起来很糟糕或没有任何意义,我很抱歉。我是新手。
代码
http://jsfiddle.net/grem28/ZhNDZ/1/(CSS的jsfiddle)
<div id="nav">
<ul>
<li id="but_products" ><a href="/products">Products</a>
<ul>
<li id="but_boilers" ><a href="/products/boilers">Boilers</a></li>
</ul>
</li>
<li id="but_resources" ><a href="/resources">Resources</a>
<ul>
<li id="but_engineeringLibrary" ><a href="/resources/engineering_library">Engineering Library</a>
<ul>
<li id="but_detroit" ><a href="/resources/engineering_library/detroit_radiant_mea_numbers">Detroit Radiant MEA numbers</a></li>
</ul>
</li>
</ul>
</li>
<li id="but_contactUs" ><a href="/contact_us">Contact Us</a></li>
</ul>
</div>
达明
答案 0 :(得分:0)
以下是功能齐全的3层CSS下拉导航系统示例:
HTML
<nav>
<ul>
<li>
Menu One
<ul>
<li>
<a href="#">Menu One Item One</a>
<ul>
<li><a href="#">Menu One Item One Submenu Item One</a></li>
<li><a href="#">Menu One Item One Submenu Item Two</a></li>
<li><a href="#">Menu One Item One Submenu Item Three</a></li>
<li><a href="#">Menu One Item One Submenu Item Four</a></li>
</ul>
</li>
<li>
<a href="#">Menu One Item Two</a>
<ul>
<li><a href="#">Menu One Item Two Submenu Item One</a></li>
<li><a href="#">Menu One Item Two Submenu Item Two</a></li>
<li><a href="#">Menu One Item Two Submenu Item Three</a></li>
<li><a href="#">Menu One Item Two Submenu Item Four</a></li>
</ul>
</li>
<li>
<a href="#">Menu One Item Three</a>
<ul>
<li><a href="#">Menu One Item Three Submenu Item One</a></li>
<li><a href="#">Menu One Item Three Submenu Item Two</a></li>
<li><a href="#">Menu One Item Three Submenu Item Three</a></li>
<li><a href="#">Menu One Item Three Submenu Item Four</a></li>
</ul>
</li>
<li>
<a href="#">Menu One Item Four</a>
<ul>
<li><a href="#">Menu One Item Four Submenu Item One</a></li>
<li><a href="#">Menu One Item Four Submenu Item Two</a></li>
<li><a href="#">Menu One Item Four Submenu Item Three</a></li>
<li><a href="#">Menu One Item Four Submenu Item Four</a></li>
</ul>
</li>
</ul>
</li>
<li>
Menu Two
<ul>
<li><a href="#">Menu Two Item One</a></li>
<li><a href="#">Menu Two Item Two</a></li>
<li><a href="#">Menu Two Item Three</a></li>
<li><a href="#">Menu Two Item Four</a></li>
</ul>
</li>
</ul>
</nav>
CSS
body { font-family: Helvetica, Arial, Sans-serif; line-height: 1.5em; }
a:hover { color: #cc0000; }
/* Hide submenu */
nav ul > li > ul,
nav ul > li > ul > li > ul { display:none; }
/* Layout menubar and menus */
nav { background:#ddd; padding:0.25em 0.5em; }
nav > ul > li { cursor: pointer; display:inline-block; padding:0 1em; }
nav > ul > li > ul { background: #ddd; padding:0.5em; position: absolute; z-index: 1000; }
nav > ul > li > ul > li > ul { background: #ccc; padding:0.5em; position: absolute; left: 90%; top: 0; z-index: 1001; }
/* show submenu on hover */
nav ul > li:hover > ul,
nav ul > li > ul > li:hover > ul { display:block; width:10em; }
小提琴:http://jsfiddle.net/kboucher/nrAPu/
希望这有帮助。