jQuery addClass example

Change class name on click in jQuery

by twobomb three

HTML

<section class="preloader">
  <div class="accordeon">
    <div class="slice"></div>
    <div class="slice"></div>
    <div class="slice"></div>
    <div class="slice"></div>
    <div class="slice"></div>
    <div class="slice"></div>
  </div>
</section>

CSS

.preloader {
  display: flex;
  position: fixed;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.accordeon {
  display: flex;
  position: relative;
  height: 40px;
  justify-content: center;
  align-items: center;
}

.slice {
  width: 8px;
  height: 25px;
  background: #000;
  display: inline-block;
  margin: 2px;
}

@keyframes SliceHeight {

  0%,
  100% {
    height: 25px;
  }

  50% {
    height: 40px;
  }
}

JavaScript

var cooldown = 60;
 for(let i = 0; i < $(".accordeon").children().length; i++){ 
    setTimeout(function(){
      $(`.accordeon>.slice:eq(${i})`).css("animation", "SliceHeight .3s infinite linear");
    }, cooldown*i);
  }