ブートストラップ：アコーディオン初め

Question

にcollpasedない私はアコーディオンを持って、次のコードを使用しています、問題はその初めに崩壊していないということですが、あなたは

をクリックするまで、それが崩壊するだろうか私を助けてくださいます私はcodepen

からコードを得ました

<script> 
    $(document).ready(function() { 

     $(".toggle-accordion").on("click", function() { 
      var accordionId = $(this).attr("accordion-id"), 
      numPanelOpen = $(accordionId + ' .collapse.in').length; 
      $(this).toggleClass("active"); 

     }) 
    }); 
</script> 


<style> 
    .panel-body{ 
     padding:10px; 
     font-size:15px; 
    } 
    input[type="checkbox"] { 
     margin-right: 12px !important; 
    } 
    .col-sm-4{ 
     margin-bottom:40px; 
    } 
    .leftindent{ 
     margin-left:30px; 
    } 
    .panel-default>.panel-heading { 
     color: #333; 
     background-color: #fff; 
     border-color: #e4e5e7; 
     padding: 0; 
     -webkit-user-select: none; 
     -moz-user-select: none; 
     -ms-user-select: none; 
     user-select: none; 
    } 

    .panel-default>.panel-heading a { 
     display: block; 
     padding: 10px 15px; 
    } 

    .panel-default>.panel-heading a:after { 
     content: ""; 
     position: relative; 
     top: 1px; 
     display: inline-block; 
     font-family: 'Glyphicons Halflings'; 
     font-style: normal; 
     font-weight: 400; 
     line-height: 1; 
     -webkit-font-smoothing: antialiased; 
     -moz-osx-font-smoothing: grayscale; 
     float: right; 
     transition: transform .25s linear; 
     -webkit-transition: -webkit-transform .25s linear; 
    } 

    .panel-default>.panel-heading a[aria-expanded="true"] { 
     background-color: #eee; 
    } 

    .panel-default>.panel-heading a[aria-expanded="true"]:after { 
     content: "\2212"; 
     -webkit-transform: rotate(180deg); 
     transform: rotate(180deg); 
    } 

    .panel-default>.panel-heading a[aria-expanded="false"]:after { 
     content: "\002b"; 
     -webkit-transform: rotate(90deg); 
     transform: rotate(90deg); 
    } 

    .accordion-option { 
     width: 100%; 
     float: left; 
     clear: both; 
     margin: 15px 0; 
    } 

    .accordion-option .title { 
     font-size: 20px; 
     font-weight: bold; 
     float: left; 
     padding: 0; 
     margin: 0; 
    } 

    .accordion-option .toggle-accordion { 
     float: right; 
     font-size: 16px; 
     color: #6a6c6f; 
    } 

    .accordion-option .toggle-accordion:before { 
     content: "Expand All"; 
    } 

    .accordion-option .toggle-accordion.active:before { 
     content: "Collapse All"; 
    } 

</style> 

以下はhtmlコードです。

<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="#cookiesandbiscotti" aria-expanded="true" aria-controls="collapseOne"> 
              4 Cookies &amp; Biscotti 
             </a> 
            </h4> 
           </div> 
    <div id="cookiesandbiscotti" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne"> 
     <div class="panel-body"> 
     <?php foreach($mincookines as $value):?> 
      <div class="form-group"><input type="checkbox"><?= $value;?></div> 
     <?php endforeach;?> 
    </div> 
    </div> 
    </div> 
    </div> 

Answer 1

私には解決策があります。あなたはそれが正常な状態になることができるように、からinクラスを削除する必要があります。 aria-expanded="true"〜falseにしてください。それはあなたのために働くでしょう。ここでは、更新codepen

コード

<div class="container"> 
    <div class="accordion-option"> 
    <h3 class="title">Lorem Ipsum</h3> 
    <a href="javascript:void(0)" class="toggle-accordion active" accordion-id="#accordion"></a> 
    </div> 
    <div class="clearfix"></div> 
    <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="false" aria-controls="collapseOne"> 
      Collapsible Group Item #1 
     </a> 
     </h4> 
     </div> 
     <div id="collapseOne" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingOne"> 
     <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-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"> 
      Collapsible Group Item #2 
     </a> 
     </h4> 
     </div> 
     <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo"> 
     <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-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"> 
      Collapsible Group Item #3 
     </a> 
     </h4> 
     </div> 
     <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree"> 
     <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> 
</div> 

Answer 2

を見ることができますinクラスフォームのdivのid cookiesandbiscottiを削除してください。

Answer 3

「の」削除クラスに、またはあなたが最初の項目は

Answer 4

がclass="panel-collapse collapse in"からinクラスを削除し、あなたが行ってもいいです開いていたことをしたい場合は、あまりにも最初の項目を追加します。