https://www.intellectsoft.net/blog/wp-content/themes/intellectsoft/js/latest-tech.js?ver=1.1

1;(function () {
2  if(document.querySelector('.latest-teach') && window.innerWidth >= 768) {
3    const parentElem = document.querySelector('.teach-items');
4    const items = parentElem.querySelectorAll('.teach-item');
5
6    let heightList = 1;
7    Array.prototype.forEach.call(items, (item) => {
8      parentElem.style.marginBottom = item.clientHeight + 20 + 'px';
9      if (heightList < item.clientHeight) {
10        heightList = item.clientHeight;
11      }
12      let targetElem = item.querySelector('.preview');
13      targetElem.addEventListener('click', () => {
14        items.forEach((oldItem) => {
15          oldItem.classList.remove('active');
16        });
17        parentElem.style.marginBottom = targetElem.clientHeight + 20 + 'px';
18        item.classList.add('active');
19      })
20    });
21
22    Array.prototype.forEach.call(items, (item) => {
23      let preview = item.querySelector('.preview');
24      preview.style.height = heightList + 'px';
25    });
26  }
27
28  if(document.querySelector('.capabilities')) {
29    const parentElem = document.querySelector('.capabilities-block');
30    const items = parentElem.querySelectorAll('.dev-description');
31
32    Array.prototype.forEach.call(items, (item) => {
33      item.addEventListener('click', (e) => {
34        if (/active/.test(item.classList)) {
35          item.classList.remove('active');
36        } else {
37          item.classList.add('active');
38        }
39      })
40    });
41  }
42})();