function getRandomArbitrary(min, max) {
            return Math.random() * (max - min) + min;
        }
        function getRandomInt(min, max) {
            return Math.floor(Math.random() * (max - min + 1)) + min;
        }

        var a = true;
        if (a) {
            for (var i = 0; i < 10; i++) {
                $('body').append(`
                    <div
                    class="fake_div"
                    style="
                        filter: blur(5px);
                        pointer-events: none;
                        opacity: 0.01;
                        border: 1px solid white;
                        transition: all .3s;
                        position: fixed;
                        left: 0;
                        top: 0;
                        width: 0px;
                        height: 0px;
                        border-radius: 20px;
                    "></div>`);
            }
            $(window).on('scroll', function(e) {
                $('.fake_div').each(function(index, el) {
                    $(el)
                        .css('border-bottom-width', getRandomInt(15, 20))
                        .css('box-shadow', `1px ${getRandomInt(1, 10)}px 10px`)
                        .css('transform', `
                            translate3d(${getRandomArbitrary(0, 10)}px, ${getRandomArbitrary(0, 10)}px, ${getRandomArbitrary(0, 10)}px)
                            rotate3d(0, 1, 0, ${getRandomArbitrary(0, 45)}deg)
                            scale3d(0.5, 0.5, 0.5)
                        `);
                });
            });
        }