帮助将普通导航栏转换为下拉导航栏

发布于 2024-10-26 10:06:29 字数 1912 浏览 2 评论 0原文

我有一个简单的导航栏,我想将其转换为下拉导航栏,但我不确定需要做什么才能完成此操作。我需要特定的 javascript 代码或 css 吗?谢谢

/* navigation menu */
div#navigation {
    height:55px;
    background:#0C1C29 url('images/nav-bg.png') repeat-x scroll top left;
}
div#innernav {
    background:transparent url('images/nav-left.png') no-repeat scroll top left;
    height:55px;
}
div#navigation ul {
    background:transparent url('images/nav-right.png') no-repeat scroll top right;
    list-style:none;
    margin:0; 
    padding:0 10px;
    position:relative;
    top:0;
    height:55px;
    display:block;
}
div#navigation ul li {
    display:block;
    float:left;
}
div#navigation ul li a {
    display:block;
    float:left;
    color:#ffffff;
    border-bottom:none;
    height:32px;
    font-family:"Trebuchet MS", Verdana, Arial;
    font-weight:bold;
    font-size:1.2em;
    padding:14px 20px 9px;
    border-right:1px solid #060D14;
    border-left:1px solid #244566;
}
div#navigation ul li.navleft a {
    border-left:none;
}
div#navigation ul li.navright a {
    border-right:none;
}
div#navigation ul li a:hover {
    color:#FC8228;
}


<div id="navigation">
        <div id="innernav">
            <ul>
                <!-- top navigation  -->
                <!-- add class navleft to first item and navright to last item as shown -->
                <li class="navleft"><a href="index.html">home</a></li>
                <li><a href="examples.html">examples</a></li>
                <li><a href="#">solutions</a></li>
                <li><a href="#">our service</a></li>
                <li><a href="#">support</a></li>
                <li class="navright"><a href="#">contact</a></li>
            </ul>
        </div>
    </div>

I hav a simple nav bar that i want to convert into a drop down nav bar, but i am not sure what i have to do to accomplish this. Do i need a certain javascript code or css. thanks

/* navigation menu */
div#navigation {
    height:55px;
    background:#0C1C29 url('images/nav-bg.png') repeat-x scroll top left;
}
div#innernav {
    background:transparent url('images/nav-left.png') no-repeat scroll top left;
    height:55px;
}
div#navigation ul {
    background:transparent url('images/nav-right.png') no-repeat scroll top right;
    list-style:none;
    margin:0; 
    padding:0 10px;
    position:relative;
    top:0;
    height:55px;
    display:block;
}
div#navigation ul li {
    display:block;
    float:left;
}
div#navigation ul li a {
    display:block;
    float:left;
    color:#ffffff;
    border-bottom:none;
    height:32px;
    font-family:"Trebuchet MS", Verdana, Arial;
    font-weight:bold;
    font-size:1.2em;
    padding:14px 20px 9px;
    border-right:1px solid #060D14;
    border-left:1px solid #244566;
}
div#navigation ul li.navleft a {
    border-left:none;
}
div#navigation ul li.navright a {
    border-right:none;
}
div#navigation ul li a:hover {
    color:#FC8228;
}


<div id="navigation">
        <div id="innernav">
            <ul>
                <!-- top navigation  -->
                <!-- add class navleft to first item and navright to last item as shown -->
                <li class="navleft"><a href="index.html">home</a></li>
                <li><a href="examples.html">examples</a></li>
                <li><a href="#">solutions</a></li>
                <li><a href="#">our service</a></li>
                <li><a href="#">support</a></li>
                <li class="navright"><a href="#">contact</a></li>
            </ul>
        </div>
    </div>

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就是爱搞怪 2024-11-02 10:06:29

下面是一个使用 suckerfish 方法的示例:

http://jsfiddle.net/uCdGc/

这就是神奇之处CSS:

/* Code for dropdown */
#navigation ul li ul {
    position: absolute;
    left:-999em;
}
#navigation ul li ul li {
    float:none;
    /* put the rest of your styles here*/
}
#navigation ul li:hover ul, #navigation ul li.sfhover ul {
    left:auto;
    margin-top:55px;
}

有关 suckerfish 的更多信息,请查看以下网址:http://www.htmldog.com/ articles/suckerfish/dropdowns/

我所做的是将包含子导航元素的 ul 元素添加到“示例”导航项中。当您将鼠标悬停在上方时,CSS 将定位子导航,以便它出现在您想要的位置。这应该无需任何 javascript 即可工作,但如果您想支持 IE 6,则需要包含 jQuery javascript 库以及示例中 javascript 块中的代码。

现在,子导航的样式很简单,但可以根据需要添加更多样式。我已经评论过你应该在哪里添加它们。

祝你好运。

Here is an example that uses the suckerfish methodology:

http://jsfiddle.net/uCdGc/

Here is the magic CSS:

/* Code for dropdown */
#navigation ul li ul {
    position: absolute;
    left:-999em;
}
#navigation ul li ul li {
    float:none;
    /* put the rest of your styles here*/
}
#navigation ul li:hover ul, #navigation ul li.sfhover ul {
    left:auto;
    margin-top:55px;
}

For more on suckerfish, check out this url: http://www.htmldog.com/articles/suckerfish/dropdowns/

What I've done is added a ul element containing subnavigation elements to your "Examples" navigation item. When you hover over, the CSS will position the subnavigation so that it appears where you want it. This should work without any javascript, but if you want to support IE 6, you will need to include the jQuery javascript library and the code in the javascript block in the example.

Right now the subnavigation is styled plainly, but add more styles as you need. I've commented where you should add them.

Good luck.

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