Question

根据这个例子，我想让它开始只在手机上折叠。在平板电脑和台式机上它应该正常启动。

<style>
.panel-heading a:after {
    font-family:'Glyphicons Halflings';
    content:"\e114";
    float: right;
    color: grey;
}
.panel-heading a.collapsed:after {
    content:"\e080";
}
</style>
<div class="panel-group" id="accordion">
    <div class="panel panel-default" id="panel1">
        <div class="panel-heading">
             <h4 class="panel-title">
        <a data-toggle="collapse" data-target="#collapseOne" 
           href="#collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>

        </div>
        <div id="collapseOne" class="panel-collapse collapse in">
            <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>
<!-- Post Info -->
<div style='position:fixed;bottom:0;left:0;    
            background:lightgray;width:100%;'>Based off this SO Question: <a href='http://stackoverflow.com/a/11658976/1366033'>Keep Bootstrap Grid Open</a>

    <br/>Based off this SO Question: <a href='http://stackoverflow.com/a/18568997/1366033'>Show Collapse state with Chevron Icon</a>

    <br/>Find documentation: <a href='http://getbootstrap.com/javascript/#collapse-usage'>Bootstrap Collapse Usage</a>

    <br/>Fork This Skeleton Here <a href='http://jsfiddle.net/KyleMit/kcpma/'>Bootrsap 3.0 Skeleton</a>

    <br/>
    <div>

http://jsfiddle.net/Wc4xt/1052/

Answer 1

在仅定位移动设备（screen-md）的指定屏幕宽度下，您可能会崩溃：

@media (min-width: @screen-md) 
{
    #targetID
    {
        display: block;
    }
}

只有在媒体查询不再适用时，才会显示扩展#targetID的按钮。

<button type="button" data-toggle="collapse" data-target="#targetID" class="visible-xs visible-sm collapsed">Filter</button>

<div id="targetID" class="collapse">...</div>

如何使面板开始仅在手机上折叠

1 个答案: