https://www.wcmessenger.com/wp-content/themes/dolores/assets/js/slider-helper.js?ver=1.0

1/**
2 * Scrolls a given parent element until a given child element is visible within the parent, without necessarily scrolling the entire page
3 * 
4 * @param {HTMLElement} parent - Container element that is scrollable
5 * @param {HTMLElement} child - Element to make visible by scrolling the container element
6 * @return {boolean} True if the element was scrolled, false if it was already visible and didn't need to be scrolled
7 */
8function scrollParentToChild(parent, child, animate = true) {
9    // Where is the parent on page?
10    const parentRect = parent.getBoundingClientRect();
11    // What can you see?
12    const parentViewableArea = {
13        height: parent.clientHeight,
14        width: parent.clientWidth,
15    };
16    
17    // Where is the child?
18    const childRect = child.getBoundingClientRect();
19    // Is the child viewable?
20    // @todo: add some functionality to determine if the target is x% visible (70%?). as it is now, if there is 1 pixel visible, it will not scroll
21    const isVerticallyViewable = (childRect.top >= parentRect.top) && (childRect.top <= parentRect.top + parentViewableArea.height);
22    const isHorizontallyViewable = (childRect.left >= parentRect.left) && (childRect.left <= parentRect.left + parentViewableArea.width);
23
24    // if you can't see the child try to scroll parent
25    if (!isVerticallyViewable) {
26      // scroll by offset relative to parent
27        const verticalOffset = (childRect.top + parent.scrollTop) - parentRect.top;
28        if (animate) {
29            jQuery(parent).animate({ scrollTop: verticalOffset });
30        } else {
31            parent.scrollTop = verticalOffset;
32        }
33        return true;
34    } else if (!isHorizontallyViewable) {
35        const horizontalOffset = (childRect.left + parent.scrollLeft) - parentRect.left;
36        if (animate) {
37            jQuery(parent).animate({ scrollLeft: horizontalOffset });
38        } else {
39            parent.scrollLeft = horizontalOffset;
40        }
41        return true;
42    }
43    return false;
44}