jQuery addClass example

Change class name on click in jQuery

by Sergey khorev

HTML

<div id="banner-message">
  <p>Hello World</p>
  <button>Change color</button>
</div>
.
<div class="pd__tt">sdasdasda
  
</div>


<style> 
.pd__tt-hide{
    display:none;
}
</style>


<script type="text/javascript">
    $(document).ready(function(){
        if (document.location.pathname == 'https://jsfiddle.net/boilerplate/jquery') {
           $('.pd__tt').addClass("pd__tt-hide");   
        }
        if (document.location.pathname == '/foto/stroyashchiesya/') {
           $('.pd__tt').addClass("pd__tt-hide");   
        }
    });
</script>
<? endif; ?>

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

// find elements
var banner = $("#banner-message")
var button = $("button")

// handle click and add class
button.on("click", function(){
  banner.addClass("alt")
})