divi animation

<script type="application/javascript">
(function($) {
$(document).ready(function() {

var $animation_elements = $('.et-waypoint'),
$window = $(window);

function check_if_in_view() {
var window_height = $window.height(),
window_top_position = $window.scrollTop(),
window_bottom_position = (window_top_position + window_height);

$animation_elements.each(function() {
var $element = $(this),
element_height = $element.outerHeight(),
element_top_position = $element.offset().top,
element_bottom_position = (element_top_position + element_height);
//check to see if this element is within viewport
if ((element_bottom_position >= window_top_position) && (element_top_position <= window_bottom_position)) {
    if($('.et_animated').length === 0){

$element.addClass('et_animated');
}
} else {
$element.removeClass('et_animated');
}
});
}

$window.on('scroll resize', check_if_in_view);

});
})(jQuery)
</script>