简洁的Bootstrap手风琴下拉列表美化效果

这是一款简洁的Bootstrap手风琴下拉列表美化效果。该效果在原生bootstrap Accordion的基础上，通过CSS样式来对它进行美化，生成简洁时尚的手风琴下拉列表效果。

使用方法

在页面中引入bootstrap相关文件和FontAwesome字体图标文件。

<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/font-awesome.min.css" rel="stylesheet">
                

HTML结构

该bootstrap手风琴下拉列表的基本HTML结构如下：

<div class="container">
    <div class="row">
        <div class="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">
                            <p>Lorem ipsum dolor ...... </p>
                        </div>
                    </div>
                </div>
 
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingTwo">
                        <h4 class="panel-title">
                            <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
                                Section 2
                            </a>
                        </h4>
                    </div>
                    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">
                        <div class="panel-body">
                            <p>Lorem ipsum dolor ......</p>
                        </div>
                    </div>
                </div>
 
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingThree">
                        <h4 class="panel-title">
                            <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
                                Section 3
                            </a>
                        </h4>
                    </div>
                    <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree">
                        <div class="panel-body">
                            <p>Lorem ipsum dolor ......</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>  
                

CSS样式

原生的bootstrap手风琴效果如下图：

经过美化后的bootstrap手风琴效果如下图：

该bootstrap手风琴下拉列表的美化CSS样式如下：

a:hover,a:focus{
    text-decoration: none;
    outline: none;
}
#accordion .panel{
    border: none;
    border-top: 1px solid #e8e8e8;
    box-shadow: none;
    border-radius: 0;
    margin: 0;
}
#accordion .panel:last-child{
    border-bottom: 1px solid #e8e8e8;
}
#accordion .panel-heading{
    padding: 0;
}
#accordion .panel-title a{
    display: block;
    font-size: 16px;
    font-weight: bold;
    line-height: 24px;
    color: #635858;
    background: #fff;
    padding: 15px 20px 15px 47px;
    position: relative;
    transition: all 0.5s ease 0s;
}
#accordion .panel-title a:before{
    content: "\f068";
    font-family: 'FontAwesome';
    display: block;
    width: 30px;
    height: 30px;
    line-height: 32px;
    border-radius: 50%;
    background: #888bc2;
    font-size: 14px;
    color: #fff;
    text-align: center;
    position: absolute;
    top: 25%;
    left: 0;
    transition: all 0.3s ease 0s;
}
#accordion .panel-title a.collapsed:before{
    content: "\f067";
}
#accordion .panel-body{
    font-size: 15px;
    color: #635858;
    line-height: 25px;
    border: none;
    padding: 14px 20px 14px 47px;
}