javascript - Toggle up and down arrows in a simple accordion widget -

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i have followed few tutorials , created simple accordion widget, works fine can see in fiddle

however, trying add downward arrow when section closed , upper arrow when section open - @ right end of head of each tab in accordion, image below shows:

enter image description here here arrows font codes: 

.icon-arrowup:before {    content: "\f077"; } .icon-arrowdown:before {    content: "\f078"; }

here have tried, added downward arrow default using css:

.accordian .accordian-head:before {         font-family: 'icons';         content: "\f078";         float: right;     }

this added arrow nicely, want replace arrow upward 1 when section open, have no clue do! tried add following css , toggle javascript, didn't work:

.accordian .accordian-head .accordian-head-active:before {         font-family: 'icons';         content: "\f077";         background-color: red;     }   //accordian     $('.accordion').each(function () {         var $accordian = $(this);         $accordian.find('.accordion-head').on('click', function () {             $accordian.find('.accordion-body').slideup();             if (!$(this).next().is(':visible')) {                 $(this).next().slidedown();                 $(this).addclass('accordian-head-active');             }         });     });

i have using css border - arrow

js

$('.accordion').each(function () {         var $accordian = $(this);         $accordian.find('.accordion-head').on('click', function () {             $accordian.find('.accordion-body').slideup();             if (!$(this).next().is(':visible')) {                 $(this).next().slidedown();                    $('h4 span',this).text("up arrow");             }else{                 $('h4 span',this).text("down arrow");             }         });     });

added css

.arrow {     float: right;     width: 0px;     height: 0px;     margin-top: 23px;     border: 10px solid transparent;     margin-top: 21px;     border-top-color: #f3f3f3; } .accordion-head.open .arrow {     margin-top: 11px;     border-bottom-color: #f3f3f3;     border-top-color: transparent; }

demo here

demo 2


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