css Akkordeon Pfeil nach rechts und Pfeil nach unten funktioniert nicht richtig

Question

hai Ich benutze Akkordeon, standardmäßig zeigte es "V" Pfeil nach unten beim Start, wenn Sie auf einen Tab klicken (Beim ersten Öffnen) zeigt es gleiche Pfeil nach unten, und Wenn ich die Registerkarte ausblenden, wird es wieder normal ">" Pfeil nach rechts und dann zeigen und ausblenden funktioniert gut.

ich den Pfeil nach rechts muß auf standardmäßig angezeigt werden, wenn i offenen Pfeil klicken soll nach unten bewegen, habe ich versucht, viele Dinge und konnte nicht das gewünschte Ergebnis erhalten Sie

die Geige Besuche

.panel-heading .accordion-toggle:after { 
 
    /* symbol for "opening" panels */ 
 
    font-family: 'Glyphicons Halflings'; /* essential for enabling glyphicon */ 
 
    content: "\e114"; /* adjust as needed, taken from bootstrap.css */ 
 
    float: right;  /* adjust as needed */ 
 
    color: grey;   /* adjust as needed */ 
 
} 
 
.panel-heading .accordion-toggle.collapsed:after { 
 
    /* symbol for "collapsed" panels */ 
 
    content: "\e080"; /* adjust as needed, taken from bootstrap.css */ 
 
}

<!-- Latest compiled and minified Bootstrap CSS --> 
 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css"> 
 

 
<div class = "container"> 
 

 
    
 
    <div class="panel-group" id="accordion"> 
 
    <div class="panel panel-default"> 
 
    <div class="panel-heading"> 
 
     <h4 class="panel-title"> 
 
     <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne"> 
 
      Collapsible Group Item #1 
 
     </a> 
 
     </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-default"> 
 
    <div class="panel-heading"> 
 
     <h4 class="panel-title"> 
 
     <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo"> 
 
      Collapsible Group Item #2 
 
     </a> 
 
     </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-default"> 
 
    <div class="panel-heading"> 
 
     <h4 class="panel-title"> 
 
     <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseThree"> 
 
      Collapsible Group Item #3 
 
     </a> 
 
     </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> 
 
    
 
    
 
</div> <!-- end container --> 
 

 
<!-- Latest compiled and minified JavaScript --> 
 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> 
 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

Answer 1

Fügen Sie die Klasse collapsed zu Ihren <a> Tags hinzu. Sie machen zunächst als offen wegen der fehlenden Klasse

https://jsfiddle.net/jpgc24rg/

<a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">