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Home » 前端集合 » 利用css3制作的动态导航

利用css3制作的动态导航

发布者:前端集合 // 发布时间:2011-06-10 09:32:00 // 分类:前端集合 // 访问: 1,012 次 // 热度: 0人参与

首先看看Demo

1. HTML

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />

        <title>CSS3 Animated Navigation Menu | Tutorialzine Demo</title>

        <!-- Our CSS stylesheet file -->
        <link rel="stylesheet" href="assets/css/styles.css" />

        <!-- Including the Lobster font from Google's Font Directory -->
        <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Lobster" />

        <!-- Enabling HTML5 support for Internet Explorer -->
        <!--[if lt IE 9]>
          <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
        <![endif]-->
    </head>

    <body>

        <header>
            <h1>CSS3 Animated Navigation Menu</h1>
            <h2>&laquo; Read and download on Tutorialzine</h2>
        </header>

        <nav>
            <ul class="fancyNav">
                <li id="home"><a href="#home" class="homeIcon">Home</a></li>
                <li id="news"><a href="#news">News</a></li>
                <li id="about"><a href="#about">About us</a></li>
                <li id="services"><a href="#services">Services</a></li>
                <li id="contact"><a href="#contact">Contact us</a></li>
            </ul>
        </nav>

        <footer>Looks best in Firefox 4, usable everywhere.</footer>

    </body>
</html>

2. CSS

首先,制作一个ul li结构,CSS代码如下:

.fancyNav{
    /* Affects the UL element */
    overflow: hidden;
    display: inline-block;

    border-radius: 4px;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;

    box-shadow: 0 0 4px rgba(255, 255, 255, 0.6);
    -moz-box-shadow: 0 0 4px rgba(255, 255, 255, 0.6);
    -webkit-box-shadow: 0 0 4px rgba(255, 255, 255, 0.6);
}

.fancyNav li{
    /* Specifying a fallback color and we define CSS3 gradients for the major browsers: */

    background-color: #f0f0f0;
    background-image: -webkit-gradient(linear,left top, left bottom,from(#fefefe), color-stop(0.5,#f0f0f0), color-stop(0.51, #e6e6e6));
    background-image: -moz-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
    background-image: -o-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
    background-image: -ms-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
    background-image: linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);

    border-right: 1px solid rgba(9, 9, 9, 0.125);

    /* Adding a 1px inset highlight for a more polished efect: */

    box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;
    -moz-box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;
    -webkit-box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;

    position:relative;

    float: left;
    list-style: none;
}

注意,上述CSS代码使用了大量的CSS3渐变属性,这种属性现在只有Firefox, Chrome and Safari支持。

接下来,要使用:after来制作当鼠标hover到li上的效果:

.fancyNav li:after{

    /* This creates a pseudo element inslide each LI */   

    content:'.';
    text-indent:-9999px;
    overflow:hidden;
    position:absolute;
    width:100%;
    height:100%;
    top:0;
    left:0;
    z-index:1;
    opacity:0;

    /* Gradients! */

    background-image:-webkit-gradient(linear, left top, right top, from(rgba(168,168,168,0.5)),color-stop(0.5,rgba(168,168,168,0)), to(rgba(168,168,168,0.5)));
    background-image:-moz-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
    background-image:-o-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
    background-image:-ms-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
    background-image:linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));

    /* Creating borders with box-shadow. Useful, as they don't affect the size of the element. */

    box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;
    -moz-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;
    -webkit-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;

    /* This will create a smooth transition for the opacity property */

    -moz-transition:0.25s all;
    -webkit-transition:0.25s all;
    -o-transition:0.25s all;
    transition:0.25s all;
}

接着,我们要用:first-child and :last-child来控制第一个和最后一个li:

/* Treating the first LI and li:after elements separately */

.fancyNav li:first-child{
    border-radius: 4px 0 0 4px;
}

.fancyNav li:first-child:after,
.fancyNav li.selected:first-child:after{
    box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;
    -moz-box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;
    -webkit-box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;

    border-radius:4px 0 0 4px;
}

.fancyNav li:last-child{
    border-radius: 0 4px 4px 0;
}

/* Treating the last LI and li:after elements separately */

.fancyNav li:last-child:after,
.fancyNav li.selected:last-child:after{
    box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;
    -moz-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;
    -webkit-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;

    border-radius:0 4px 4px 0;
}

.fancyNav li:hover:after,
.fancyNav li.selected:after,
.fancyNav li:target:after{
    /* This property triggers the CSS3 transition */
    opacity:1;
}

.fancyNav:hover li.selected:after,
.fancyNav:hover li:target:after{
    /* Hides the targeted li when we are hovering on the UL */
    opacity:0;
}

.fancyNav li.selected:hover:after,
.fancyNav li:target:hover:after{
    opacity:1 !important;
}

/* Styling the anchor elements */

.fancyNav li a{
    color: #5d5d5d;
    display: inline-block;
    font: 20px/1 Lobster,Arial,sans-serif;
    padding: 12px 35px 14px;
    position: relative;
    text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.6);
    z-index:2;
    text-decoration:none !important;
    white-space:nowrap;
}

.fancyNav a.homeIcon{
    background:url('../img/home.png') no-repeat center center;
    display: block;
    overflow: hidden;
    padding-left: 12px;
    padding-right: 12px;
    text-indent: -9999px;
    width: 16px;
}

VIA

Tags: CSS, css3, 导航, menu

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