jquery_mouseMoving.js

function mouseMoving(element, movementSpeed = 1) {
    if (typeof element == 'string') {
        element = $(element);
    };
    element.css({
        'position': 'relative'
    });
    $(document).on('mousemove', function(event) {
        let x = event.pageX * 100 / $(document).innerWidth();
        let y = event.pageY * 100 / $(document).innerHeight();
        x = Number(x.toFixed(2) - 50);
        y = Number(y.toFixed(2) - 50);
        element.css({
            'left': x * movementSpeed,
            'top': y * movementSpeed
        });
    });
};