scroll 200px up code example

Example 1: scroll through page with javascript

window.scroll({
 top: 0, 
 left: 0, 
 behavior: 'smooth' 
});

Example 2: jquery on scroll x pixels

$(document).scroll(function() {
           var value=$(document).scrollTop();/* <== here*/

            if ( value >= 1000 ) {
            } else if ( value >= 500 ) {
            } else {
            }
        });