Question

我正在尝试做一个奇数偶数手风琴，其中打开/关闭选择器是一排奇数，另一排是偶数。我的意思是，第一行的右边是开放的V形，第二行的是lef，依此类推。

我尝试了下面的代码，但没有结果

**<!DOCTYPE html>
<html>
<head>
<style> 
<link href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->

<style>
@import url('https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css');
 @import url('https://netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css');
 .panel-heading {
    cursor: pointer;
}
/* CSS Method for adding Font Awesome Chevron Icons */
 .accordion-toggle:after {
    /* symbol for "opening" panels */
    font-family:'FontAwesome';
    content:"\f077";
    float: right;
    color: inherit;
}
.panel-heading.collapsed .accordion-toggle:after {
    /* symbol for "collapsed" panels */
    content:"\f078";
}
.panel-title .accordion-toggle:nth-last-child(odd):after{
float:left;
}
.panel-title .accordion-toggle:nth-last-child(even):after{
float:right;
}
</style>
</head>
<body>

<div class="editor-indent" style="margin-left: 20px; padding: 0 0 0 40px; margin-right: 50px">
<div class="container-fluid">
    <div class="row-fluid">
        <h3>Bootstrap Accordion Group that collapses when clicking whole div and has chevrons</h3>
    </div>
</div>

<div class="panel-group" id="accordion">
    <div class="panel panel-info">
        <div class="panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapseOne">
             <h4 class="panel-title accordion-toggle">
          Collapsible Group Item #1
      </h4>

        </div>
        <div id="collapseOne" class="panel-collapse collapse">
            <div class="panel-body">Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.</div>
        </div>
    </div>
    <div class="panel panel-info">
        <div class="panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapseTwo">
             <h4 class="panel-title accordion-toggle">
          Collapsible Group Item #2
      </h4>

        </div>
        <div id="collapseTwo" class="panel-collapse collapse">
            <div class="panel-body">Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.</div>
        </div>
    </div>
    <div class="panel panel-info">
        <div class="panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapseThree">
             <h4 class="panel-title accordion-toggle">
          Collapsible Group Item #3
      </h4>

        </div>
<div id="collapseThree" class="panel-collapse collapse">
            <div class="panel-body">Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.</div>
        </div>
    </div>
</div>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<script src="https://bootsnipp.com/dist/scripts.min.js"></script>
</html>**

我想从一些图标开始，但是最终结果必须是图像，但是我认为我可以更改after的内容。

奇数-偶数Bootstrap手风琴

0 个答案: