https://www.prlib.ru/sites/all/modules/custom/prlib_search/js/search_block.js?tm63kh

1(function ($) {
2  Drupal.behaviors.prlibSearchBlock = {
3    attach: function (context, settings) {
4        if ($(window).width() >= 769) {
5            var $searchForm = $('.prlib-search-form-link-form', context);
6
7            if ($searchForm.length) {
8                $('.prlib-search-form-link', context).on('click', function (e) {
9
10                    e.preventDefault();
11
12                    $searchForm.css('position', 'relative');
13
14                    if ($searchForm.find('.close').length == 0) {
15                        var $btnClose = $('<button>', {
16                            type: 'button',
17                            class: 'close',
18                            'data-dismiss': '',
19                            'aria-label': 'Close',
20                        });
21                        $('<span>', {
22                            'aria-hidden': true,
23                            click: function (e) {
24                                $('.prlib-search-form-link-form').addClass('hidden');
25                            }
26                        })
27                            .html('&times;')
28                            .css('position', 'absolute')
29                            .css('right', '10px')
30                            .css('top', '10px')
31                            .appendTo($btnClose);
32                        $searchForm.append($btnClose);
33                    }
34
35                    $searchForm.removeClass('hidden');
36                });
37            }
38        }
39    }
40  };
41})(jQuery);