jQuery addClass example

Change class name on click in jQuery

by Dmitri Ganenco

HTML

<div class="row">
  <div class="col-md-12 bottom-col">
    <li>one</li>
    <li>two</li>
    <li>three</li>
    <li>four</li>
  </div>
  <div class="col-md-12 bottom-col">
    <li>apple</li>
    <li>orange</li>
    <li>grape</li>
    <li>lemon</li>
  </div>
  <div class="col-md-12 bottom-col">
    <li>house</li>
    <li>car</li>
    <li>phone</li>
    <li>laptop</li>
  </div>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

var a = $('.bottom-col:eq(2)').find('li:nth-child(3)');
debugger;