这是一款基于Bootstrap网格系统和Collapse插件制作的炫酷垂直手风琴列表特效。该特效对原生的Bootstrap Accordion进行美化，制作非常美观的垂直手风琴效果。

使用方法

在页面中引入bootstrap的相关文件。

<link rel="stylesheet" type="text/css" href="/path/to/bootstrap.min.css">
<script src="/path/to/bootstrap.min.js"></script>
HTML结构

该垂直手风琴特效的HTML结构如下：

<div class="container">
    <div class="row">
        <div class="col-md-offset-3 col-md-6">
            <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingOne">
                        <h4 class="panel-title">
                            <a role="button" data-toggle="collapse" data-parent="#accordion" 
                              href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
                                Section 1
                            </a>
                        </h4>
                    </div>
                    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
                        <div class="panel-body">
                            ......
                        </div>
                    </div>
                </div>
                ......
            </div>
        </div>
    </div>
</div>
CSS样式

用于美化该垂直手风琴的CSS样式也非常简单，如下：

a:hover,a:focus{
    text-decoration: none;
    outline: none;
}
#accordion .panel{
    border: none;
    box-shadow: none;
    border-radius: 0;
    margin-top: 0;
}
#accordion .panel-heading{
    padding: 0;
    border-radius: 0;
    border: none;
}
#accordion .panel-title a{
    display: block;
    font-size: 16px;
    font-weight: bold;
    color: #f7c59f;
    padding: 15px 48px 15px 20px;
    background: #e16b47;
    position: relative;
    transition: all 0.3s ease 0s;
}
#accordion .panel-title a.collapsed{
    color: #e16b47;
    background: #f7c59f;
    border-bottom: 1px solid #3d3537;
}
#accordion .panel-title a:after,
#accordion .panel-title a.collapsed:after{
    content: "";
    display: block;
    width: 3px;
    height: 100%;
    position: absolute;
    top: 0;
    right: 30px;
    background: #f7c59f;
}
#accordion .panel-title a.collapsed:after{
    background: #e16b47;
}
#accordion .panel-title a:before,
#accordion .panel-title a.collapsed:before{
    content: "\f068";
    font-family: FontAwesome;
    width: 25px;
    height: 25px;
    line-height: 25px;
    border-radius: 50%;
    background: #f7c59f;
    position: absolute;
    top: 12px;
    right: 19px;
    font-size: 14px;
    color: #e16b47;
    text-align: center;
    z-index: 1;
}
#accordion .panel-title a.collapsed:before{
    content: "\f067";
    color: #f7c59f;
    background: #e16b47;
}
#accordion .panel-body{
    background: #e16b47;
    color: #f7c59f;
    padding: 20px 50px 15px 20px;
    line-height: 25px;
    border: none;
    position: relative;
}
#accordion .panel-body:after{
    content: "";
    display: block;
    width: 3px;
    height: 100%;
    background: #f7c59f;
    position: absolute;
    top: 0;
    right: 30px;
}