Accordion

accordion.markdown

Accordion

Accordion JS functionality allowing you to set the animation speed of the toggle. You also have the option of being able to have just one accordion item open at any one given time.

A Pen by james quinn on CodePen.

License.

index.html

<div class="accordion js-accordion">
  <div class="accordion__item js-accordion-item">
    <div class="accordion-header js-accordion-header">Panel 1</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
  <div class="accordion__item js-accordion-item active">
    <div class="accordion-header js-accordion-header">Panel 2</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
    <div class="accordion__item js-accordion-item">
    <div class="accordion-header js-accordion-header">Panel 3</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
     <div class="accordion__item js-accordion-item">
    <div class="accordion-header js-accordion-header">Panel 4</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
     <div class="accordion__item js-accordion-item">
    <div class="accordion-header js-accordion-header">Panel 5</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
     <div class="accordion__item js-accordion-item">
    <div class="accordion-header js-accordion-header">Panel 6</div> 
  <div class="accordion-body js-accordion-body">
    <div class="accordion-body__contents">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
    </div>
      <div class="accordion js-accordion">
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 1</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
        <div class="accordion__item js-accordion-item">
           <div class="accordion-header js-accordion-header">Sub Panel 2</div> 
           <div class="accordion-body js-accordion-body">
             <div class="accordion-body__contents">
              Lorem ipsum dolor sit amet consectetur adipisicing elit. Dignissimos sequi placeat distinctio dolor, amet magnam voluptatibus eos ex vero, sunt veritatis esse. Nostrum voluptatum et repudiandae vel sed, explicabo in?
             </div><!-- end of sub accordion item body contents -->
           </div><!-- end of sub accordion item body -->
        </div><!-- end of sub accordion item -->
      </div><!-- end of sub accordion -->
    </div><!-- end of accordion body -->
  </div><!-- end of accordion item -->
</div><!-- end of accordion -->
   

script.js

var accordion = (function(){
  
  var $accordion = $('.js-accordion');
  var $accordion_header = $accordion.find('.js-accordion-header');
  var $accordion_item = $('.js-accordion-item');
 
  // default settings 
  var settings = {
    // animation speed
    speed: 400,
    
    // close all other accordion items if true
    oneOpen: false
  };
    
  return {
    // pass configurable object literal
    init: function($settings) {
      $accordion_header.on('click', function() {
        accordion.toggle($(this));
      });
      
      $.extend(settings, $settings); 
      
      // ensure only one accordion is active if oneOpen is true
      if(settings.oneOpen && $('.js-accordion-item.active').length > 1) {
        $('.js-accordion-item.active:not(:first)').removeClass('active');
      }
      
      // reveal the active accordion bodies
      $('.js-accordion-item.active').find('> .js-accordion-body').show();
    },
    toggle: function($this) {
            
      if(settings.oneOpen && $this[0] != $this.closest('.js-accordion').find('> .js-accordion-item.active > .js-accordion-header')[0]) {
        $this.closest('.js-accordion')
               .find('> .js-accordion-item') 
               .removeClass('active')
               .find('.js-accordion-body')
               .slideUp()
      }
      
      // show/hide the clicked accordion item
      $this.closest('.js-accordion-item').toggleClass('active');
      $this.next().stop().slideToggle(settings.speed);
    }
  }
})();

$(document).ready(function(){
  accordion.init({ speed: 300, oneOpen: true });
});

scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

style.css

body {
  font-size: 62.5%;
  background: #dadada;
  font-family: 'Open Sans', sans-serif;
  line-height: 2;
  padding: 5em;
}

.accordion {
  font-size: 1rem;
  width: 30vw;
  margin: 0 auto;
  border-radius: 5px;
}

.accordion-header,
.accordion-body {
  background: white;
}

.accordion-header {
  padding: 1.5em 1.5em;
  background: #3F51B5;
  text-transform: uppercase;
  color: white;
  cursor: pointer;
  font-size: .8em;
  letter-spacing: .1em;
  transition: all .3s;
}

.accordion-header:hover {
  background: #2D3D99;
  position: relative;
  z-index: 5;
}

.accordion-body {
  background: #fcfcfc;
  color: #3f3c3c;
  display: none;
}

.accordion-body__contents {
  padding: 1.5em 1.5em;
  font-size: .85em;
}

.accordion__item.active:last-child .accordion-header {
  border-radius: none;
}

.accordion:first-child > .accordion__item > .accordion-header {
  border-bottom: 1px solid transparent;
}

.accordion__item > .accordion-header:after {
  content: "\f3d0";
  font-family: IonIcons;
  font-size: 1.2em;
  float: right;
  position: relative;
  top: -2px;
  transition: .3s all;
  transform: rotate(0deg);
}

.accordion__item.active > .accordion-header:after {
  transform: rotate(-180deg);
}

.accordion__item.active .accordion-header {
  background: #2D3D99;
}

.accordion__item .accordion__item .accordion-header {
  background: #f1f1f1;
  color: black;
}

@media screen and (max-width: 1000px) {
  body {
    padding: 1em;
  }
  
  .accordion {
    width: 100%;
  }
}

styles

<link href="https://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet" />
<link href="https://cdnjs.cloudflare.com/ajax/libs/ionicons/2.0.1/css/ionicons.min.css" rel="stylesheet" />