这是一款基于Bootstrap的简洁手风琴特效UI设计效果。该手风琴特效在原生Bootstrap Accordion 组件的基础上，通过CSS代码来对其进行美化，制作出即简洁又美观的手风琴效果。

使用方法

在页面中引入bootstrap相关文件和jquery文件。

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

该手风琴特效的HTML结构为原生Bootstrap Accordion的HTML结构。

<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

CSS样式主要是对原来的Accordion组件进行美化，代码页十分简单，如下：

.panel-group .panel{
    border:0px none;
    border-radius: 0px;
    box-shadow: none;
    border-bottom: 1px solid #676767;
}
.panel-heading{
    padding: 0;
}
.panel-default > .panel-heading {
    color: #7a4b94;
}
.panel-title{
    position: relative;
}
.panel-title > a{
    display: block;
    padding: 11px 35px;
    background: #fff;
    font-weight: 600;
}
.panel-title > a:hover,
.panel-title > a:focus{
    text-decoration: none;
    outline: none;
}
.panel-title a:before{
    content: "\f068";
    font-family: 'FontAwesome';
    margin-right: 10px;
    color:#7a4b94;
    font-weight: normal;
    position: absolute;
    left:10px;
    top:11px;
}
.panel-title .collapsed:before{
    content: "\f067";
}
.panel-title a.collapsed{
    color:#7a4b94;
    font-weight: normal;
}
.panel-body{
    color:#727272;
    padding: 5px 10px 30px;
    line-height: 23px;
    letter-spacing: 1px;
}
.panel-default > .panel-heading + .panel-collapse > .panel-body{
    border-top: 0px none;
}