jQuery addClass example

Change class name on click in jQuery

by joshmoto

HTML

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<!-- Book Your Chef -->
<div class="bg-dark card">
  <div class="card-header core-card-header">
    <h2>Book&nbsp;Your&nbsp;Chef</h2>
  </div>
  <div class="card-body core-card-body">
    <div class="card-columns">
      <div class="card">
        <img class="card-img-top img-fluid" src="//placehold.it/800x600/555" alt="Card image cap">
      </div>
      <div class="card">
        <img class="card-img-top img-fluid" src="//placehold.it/800x600" alt="Card image cap">
      </div>
      <div class="card">
        <img class="card-img-top img-fluid" src="//placehold.it/800x600/eee" alt="Card image cap">
      </div>
    </div>
  </div>
</div>

CSS

/* Medium devices (tablets, less than 992px) */
@media (min-width: 576px) {

  .card-columns {
    columns: 1;
    
  }
  
}