How to Make Bootstrap 3 Collapse Panels Stand Out with an Active Class

First of all, here is the fiddle link: http://jsfiddle.net/krish7878/h38jn324

I have a simple question. When a panel is clicked and it expands to show its contents, a class 'active' should be added to 'panel-heading'.

I came across a similar question but none of the solutions provided seemed to work for me. Any assistance would be greatly appreciated.

HTML Code:

<div class="accordion-2 panel-group" id="accordion">
    <div class="panel panel-default">
        <div class="panel-heading">
            <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
                    Our Mission
                </a>
            </h4>
        </div><!-- /.panel-heading -->
        <div id="collapseOne" class="panel-collapse collapse in">
            <div class="panel-body">
                <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.</p>
            </div>
        </div><!-- /#collapseOne -->
    </div><!-- /.panel -->
<div class="panel panel-default">
    <div class="panel-heading">
        <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
                Success Stories
            </a>
        </h4>
    </div><!-- /.panel-heading -->
    <div id="collapseTwo" class="panel-collapse collapse">
        <div class="panel-body">
            <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.</p>
        </div><!-- /.panel-body -->
    </div><!-- /#collapseTwo -->
</div><!-- /.panel -->
<div class="panel panel-default last">
    <div class="panel-heading">
        <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
                Our Story
            </a>
        </h4>
    </div><!-- /.panel-heading -->
    <div id="collapseThree" class="panel-collapse collapse">
        <div class="panel-body">
            <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.</p>
        </div><!-- /.panel-body -->
    </div><!-- /#collapseTwo -->
</div><!-- /.panel -->

JS Code:

jQuery('.accordion-2 .panel-heading a[data-toggle="collapse"]').on('click', function () {
jQuery('.accordion-2 .panel-heading a[data-toggle="collapse"]').removeClass('actives');
$(this).addClass('actives');

});

javascriptjqueryhtmlcsstwitter-bootstrap

Answer №1

Give this a try:

$('.panel-heading a').click(function() {
    $('.panel-heading').removeClass('active');
    if(!$(this).closest('.panel').find('.panel-collapse').hasClass('in'))
        $(this).parents('.panel-heading').addClass('active');
});

View JSFiddle Demo

Update 1: For the panel to be active by default on initial load, manually add the active class to the panel-heading in the HTML code.

Update 2: While this answer is accepted, it's recommended to also consider the response from user Blizwire.

Answer №2

Instead of using a standard click event, Moshtaf's current answer suggests utilizing Bootstrap's built-in event for opening and closing collapsible items, as highlighted by Jurriaan. This method is considered safer since a click on the link does not necessarily indicate that the panel is displayed. Building upon Jurriaan's solution, here is a streamlined approach with minimal code and jQuery selectors for achieving the desired functionality. Check it out here.

$(document).ready(function() {
  $('.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');
  });
});

Answer №3

I encountered a few challenges with the previous solutions provided, such as dealing with multiple panel groups on one page or toggling the same panel by clicking on its title. After some modifications inspired by this Stack Overflow post, I found a more versatile approach that also includes code for setting the default open panel to an active state.

$('.panel-group .panel-collapse.in').prev().addClass('active');
$('.panel-group')
  .on('show.bs.collapse', function(e) {
    $(e.target).prev('.panel-heading').addClass('active');
  })
  .on('hide.bs.collapse', function(e) {
    $(e.target).prev('.panel-heading').removeClass('active');
  });

Answer №4

Looking for a CSS solution, I successfully implemented this code in Bootstrap 4:

HTML

<a class="collapsed" data-toggle="collapse" data-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample"> Open Collapse </a>

<div class="collapse" id="collapseExample">
  <div class="card card-block card-outline-primary">
    <h3 class="text-center">Date Goes Here</h3>
  </div>
</div>

CSS

[data-toggle="collapse"]:not(.collapsed) {
  background-color: blue;
}

Answer №5

$(function() {
  $('.panel-heading').click(function() {
    if ($(this).hasClass('activestate')) {
      $(this).removeClass('activestate');
    } else {
      $('.panel-heading').removeClass('activestate');
      $(this).addClass('activestate');
    }
  });
});
a,
a:hover,
a:active,
a:focus {
  text-decoration: none !important
}
.panel-heading:hover,
.panel-heading:focus,
.panel-heading:hover a,
.panel-heading:focus a {
  color: #c9b27e;
  text-decoration: none !IMPORTANT;
}
.activestate {
  background-color: #c9b27e !IMPORTANT;
  color: white !important;
  display: block;
}
.activestate:hover a {
  color: black;
}
.panel-heading {
  display: block
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" />
<div class="accordion-2 panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading activestate">
      <h4 class="panel-title">
        <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
        Our Mission
        </a>
      </h4>
    </div>
    <!-- /.panel-heading -->
    <div id="collapseOne" class="panel-collapse collapse in">
      <div class="panel-body">
        <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt
          mollitia animi, id est laborum et dolorum fuga.</p>
      </div>
    </div>
    <!-- /#collapseOne -->
  </div>
  <!-- /.panel -->
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
         Success Stories
        </a>
      </h4>
    </div>
    <!-- /.panel-heading -->
    <div id="collapseTwo" class="panel-collapse collapse">
      <div class="panel-body">
        <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt
          mollitia animi, id est laborum et dolorum fuga.</p>
      </div>
      <!-- /.panel-body -->
    </div>
    <!-- /#collapseTwo -->
  </div>
  <!-- /.panel -->
  <div class="panel panel-default last">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
         Our Story
        </a>
      </h4>
    </div>
    <!-- /.panel-heading -->
    <div id="collapseThree" class="panel-collapse collapse">
      <div class="panel-body">
        <p>At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt
          mollitia animi, id est laborum et dolorum fuga.</p>
      </div>
      <!-- /.panel-body -->
    </div>
    <!-- /#collapseTwo -->
  </div>
  <!-- /.panel -->
</div>
<!-- /.accordion-2 -->

I believe this arrangement makes more sense.

Answer №6

Unlike the other solutions that involve panel-heading, this answer only requires the data-target attribute.

$('[data-toggle=collapse]').each(function() {
    var $collapse_btn = $(this),
        $collapse_target =  $(this.getAttribute('data-target'));

    $collapse_target.on('show.bs.collapse', function () {
        $collapse_btn.addClass('collapsed');
    }).on('hide.bs.collapse', function () {
        $collapse_btn.removeClass('collapsed');
    });
});

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