https://toshiba-rf.ru/bitrix/templates/aspro-lite/js/phones.js?17189144351157

1$(document).ready(function () {
2    $('.phones__inner').hover(
3        function(e) {
4            let rect = $(this)[0].getBoundingClientRect();
5            let $dropdown = $(this).find('.phones__dropdown');
6            if ($dropdown.length) {
7                let dropdown_rect = $dropdown[0].getBoundingClientRect();
8                let dropdown_top = -20;
9                let dropdown_left = -16;
10    
11                if (dropdown_rect.right > document.body.clientWidth) {
12                    $dropdown.css('left', (document.body.clientWidth - dropdown_rect.right + dropdown_left) + 'px');
13                }
14                else {
15                    $dropdown.css('left', dropdown_left + 'px');
16                }
17    
18                if ($(this).closest('.footer__phone').length){
19                    if ((window.scrollY + rect.y + dropdown_top + $dropdown[0].scrollHeight) <= document.body.clientHeight) {
20                        $dropdown.removeClass('phones__dropdown--top');
21                    } else {
22                        $dropdown.addClass('phones__dropdown--top');
23                    }
24                }
25            }
26        }
27    );
28});