jQuery&HTML&CSS3实现垂直手风琴折叠菜单方法讲解

浏览数：49 / 时间：2015年06月09日

在网页制作中我们常常需要折叠式的菜单，在折叠菜单中，手风琴特效的菜单是非常受欢迎，下面就讲解使用jQuery+HTML+CSS3实现垂直手风琴折叠菜单的方法。

jQuery实现垂直手风琴折叠菜单示例代码

首先给出手风琴折叠菜单的HTML代码，如下所示：

<!DOCTYPE html>
<html>
 
<head>
 
  <meta charset="UTF-8">
 
  <title>CSS3垂直手风琴折叠菜单DEMO演示</title>
 
  <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- Iconos -->
    <link href="css/font-awesome.min.css" rel="stylesheet">
 
    <link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />
 
</head>
 
<body>
 
    <!-- Contenedor -->
    <ul id="accordion" class="accordion">
        <li>
            <div class="link"><i class="fa fa-paint-brush"></i>Diseño web<i class="fa fa-chevron-down"></i></div>
            <ul class="submenu">
                <li><a href="#">Photoshop</a></li>
                <li><a href="#">HTML</a></li>
                <li><a href="#">CSS</a></li>
                <li><a href="#">Maquetacion web</a></li>
            </ul>
        </li>
        <li>
            <div class="link"><i class="fa fa-code"></i>Desarrollo front-end<i class="fa fa-chevron-down"></i></div>
            <ul class="submenu">
                <li><a href="#">Javascript</a></li>
                <li><a href="#">jQuery</a></li>
                <li><a href="#">Frameworks javascript</a></li>
            </ul>
        </li>
        <li>
            <div class="link"><i class="fa fa-mobile"></i>Diseño responsive<i class="fa fa-chevron-down"></i></div>
            <ul class="submenu">
                <li><a href="#">Tablets</a></li>
                <li><a href="#">Dispositivos mobiles</a></li>
                <li><a href="#">Medios de escritorio</a></li>
                <li><a href="#">Otros dispositivos</a></li>
            </ul>
        </li>
        <li><div class="link"><i class="fa fa-globe"></i>Posicionamiento web<i class="fa fa-chevron-down"></i></div>
            <ul class="submenu">
                <li><a href="#">Google</a></li>
                <li><a href="#">Bing</a></li>
                <li><a href="#">Yahoo</a></li>
                <li><a href="#">Otros buscadores</a></li>
            </ul>
        </li>
    </ul>
 
  <script src=‘js/jquery.js‘></script>
 
  <script src="js/index.js"></script>
</body>
 
</html>

如上面的代码，首先需要引入font-awesome.min.css，这是awesome的字体库。然后需要引入自定义的css，style.css代码如下面所示：

* {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
 
body {
    background: #2d2c41;
    font-family: ‘Open Sans‘, Arial, Helvetica, Sans-serif, Verdana, Tahoma;
}
 
ul {
    list-style-type: none;
}
 
a {
    color: #b63b4d;
    text-decoration: none;
}
 
/** =======================
 * Contenedor Principal
 ===========================*/
h1 {
     color: #FFF;
     font-size: 24px;
     font-weight: 400;
     text-align: center;
     margin-top: 80px;
 }
 
h1 a {
     color: #c12c42;
     font-size: 16px;
 }
 
 .accordion {
     width: 100%;
     max-width: 360px;
     margin: 30px auto 20px;
     background: #FFF;
     -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
     border-radius: 4px;
 }
 
.accordion .link {
    cursor: pointer;
    display: block;
    padding: 15px 15px 15px 42px;
    color: #4D4D4D;
    font-size: 14px;
    font-weight: 700;
    border-bottom: 1px solid #CCC;
    position: relative;
    -webkit-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease;
}
 
.accordion li:last-child .link {
    border-bottom: 0;
}
 
.accordion li i {
    position: absolute;
    top: 16px;
    left: 12px;
    font-size: 18px;
    color: #595959;
    -webkit-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease;
}
 
.accordion li i.fa-chevron-down {
    right: 12px;
    left: auto;
    font-size: 16px;
}
 
.accordion li.open .link {
    color: #b63b4d;
}
 
.accordion li.open i {
    color: #b63b4d;
}
.accordion li.open i.fa-chevron-down {
    -webkit-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}
 
/**
 * Submenu
 -----------------------------*/
 .submenu {
     display: none;
     background: #444359;
     font-size: 14px;
 }
 
 .submenu li {
     border-bottom: 1px solid #4b4a5e;
 }
 
 .submenu a {
     display: block;
     text-decoration: none;
     color: #d9d9d9;
     padding: 12px;
     padding-left: 42px;
     -webkit-transition: all 0.25s ease;
     -o-transition: all 0.25s ease;
     transition: all 0.25s ease;
 }
 
 .submenu a:hover {
     background: #b63b4d;
     color: #FFF;
 }

使用jQuery&HTML&CSS3实现垂直手风琴折叠菜单就必须使用jQuery，所以一定要引入jQuery库。然后配合自定义的js，index.js代码如下所示：

$(function() {
    var Accordion = function(el, multiple) {
        this.el = el || {};
        this.multiple = multiple || false;
 
        // Variables privadas
        var links = this.el.find(‘.link‘);
        // Evento
        links.on(‘click‘, {el: this.el, multiple: this.multiple}, this.dropdown)
    }
 
    Accordion.prototype.dropdown = function(e) {
        var $el = e.data.el;
            $this = $(this),
            $next = $this.next();
 
        $next.slideToggle();
        $this.parent().toggleClass(‘open‘);
 
        if (!e.data.multiple) {
            $el.find(‘.submenu‘).not($next).slideUp().parent().removeClass(‘open‘);
        };
    }    
 
    var accordion = new Accordion($(‘#accordion‘), false);
});