Bootstrap Collapsible Panel with Up/Down Arrow Icon

Bootstrap Collapsible Panel with Up/Down Arrow Icon
Code Snippet:Bootstrap Collapsible Panel With Up/Down Arrow Icon
Author: Nunaram Hembram
Published: January 11, 2024
Last Updated: January 22, 2024
Downloads: 24,425
License: MIT
Edit Code online: View on CodePen
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This lightweight code snippet helps you to create Bootstrap collapsible panel with an up/down arrow icon. It can be used to collapse any contents like FAQs, explanation of a term, or as a general-purpose accordion.

How to Create Bootstrap Collapsible Panel with Up/Down Arrow Icon

1. First of all load the Boostrap framework and jQuery into your HTML document.

<!-- Bootstrap -->
<link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css'>
<script src='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js'></script>
<!-- jQuery -->
<script src='https://code.jquery.com/jquery-2.2.4.min.js'></script>

2. After that, create HTML strcuture for collapsible panels as follows:

<div class="wrapper center-block">
  <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
  <div class="panel panel-default">
    <div class="panel-heading active" 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">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
      <div class="panel-body">
        Your contents...
      </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">
        Your contents...
      </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">
        Your contents...
      </div>
    </div>
  </div>
</div>
</div>

3. Now, design the collapsible panels with CSS.

.wrapper{
  width:100%;
}
@media(max-width:992px){
 .wrapper{
  width:100%;
} 
}
.panel-heading {
  padding: 0;
	border:0;
}
.panel-title>a, .panel-title>a:active{
	display:block;
	padding:15px;
  color:#555;
  font-size:16px;
  font-weight:bold;
	text-transform:uppercase;
	letter-spacing:1px;
  word-spacing:3px;
	text-decoration:none;
}
.panel-heading  a:before {
   font-family: 'Glyphicons Halflings';
   content: "\e114";
   float: right;
   transition: all 0.5s;
}
.panel-heading.active a:before {
	-webkit-transform: rotate(180deg);
	-moz-transform: rotate(180deg);
	transform: rotate(180deg);
}

4. Finally, add the following jQuery code snippet to toggle the up/down icon.

$('.panel-collapse').on('show.bs.collapse', function () {
    $(this).siblings('.panel-heading').addClass('active');
  });

  $('.panel-collapse').on('hide.bs.collapse', function () {
    $(this).siblings('.panel-heading').removeClass('active');
  });

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