https://www.winlandia.com/js/aside.js?0.35981700%201791242903

1addEventListener(
2    'DOMContentLoaded',
3    aside
4);
5
6function aside() {
7
8    const
9        headerToggle = document.querySelector('header#header button.toggle'),
10        asideToggle = document.querySelector('aside#aside button.toggle'),
11        navToggle = document.querySelector('a[rel*="menu"]'),
12        aside = document.querySelector('aside#aside');
13
14    asideToggle.addEventListener(
15        'click',
16        function () {
17            headerToggle.setAttribute(
18                'aria-expanded',
19                'false'
20            );
21            asideToggle.setAttribute(
22                'aria-expanded',
23                'false'
24            );
25            aside.classList.remove('is-active');
26        }
27    );
28
29    headerToggle.addEventListener(
30        'click',
31        function () {
32            if (aside.classList.contains('is-active')) {
33                headerToggle.setAttribute(
34                    'aria-expanded',
35                    'false'
36                );
37                asideToggle.setAttribute(
38                    'aria-expanded',
39                    'false'
40                );
41                aside.classList.remove('is-active');
42            }
43            else {
44                aside.classList.add('is-active');
45                headerToggle.setAttribute(
46                    'aria-expanded',
47                    'true'
48                );
49                asideToggle.setAttribute(
50                    'aria-expanded',
51                    'true'
52                );
53            }
54        }
55    );
56
57    navToggle.addEventListener(
58        'click',
59        function (event) {
60            aside.classList.add('is-active');
61            event.preventDefault();
62        }
63    );
64}