JSFiddle - React, Tailwind, and code Playground

by chovy

HTML

<a href="#" class="inbox">Inbox</a>

CSS

a.inbox:before {
  content: '⇧';
  display: inline-block;
  position: relative;
  -webkit-transform: rotate(180deg);
  margin-left: 5px;

  transition: -webkit-transform 1s;
}

a.inbox {
  &.anim:before {
    -webkit-transform: rotate(540deg);
  }
}

JavaScript

setInterval(function(){
    var $el = $("a.inbox");
    
    $el.addClass('anim');
    setTimeout(function(){
        $el.removeClass('anim');
    }, 1000);
}, 5000);