jQuery addClass example

Change class name on click in jQuery

HTML

<div id="banner-message">
  <p>Mousewheel should be prevented</p>
</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;
  height: 2000px;
}

JavaScript

$(window).on('wheel', function(e){

  e.preventDefault();    // Prevent user scroll during page jump
})