https://apollosauna.at/assets/sqwpluginspotlight.js

1(function($) {
2    'use strict';
3    $.fn.sqrSpotlight = function() {
4        $(this).each(function() {
5            var stage = $(this),
6                ul = stage.children('ul'),
7                items = ul.children('li'),
8                timer,
9                delay = parseInt(stage.attr('data-delay'), 10),
10                offset = 0;
11
12            function next() {
13                offset++;
14                if (offset >= items.length) offset = 0;
15                setOffset();
16            }
17
18            function setOffset() {
19                ul.css('transform', 'translateY(-' + items.eq(offset).position().top + 'px)');
20                stage.css('height', items.eq(offset).outerHeight() + 'px');
21            }
22
23            function startTimer() {
24                if (timer === undefined) timer = window.setInterval(next, delay * 1000);
25            }
26
27            function stopTimer() {
28                if (timer !== undefined) window.clearInterval(timer);
29                timer = undefined;
30            }
31
32            setOffset();
33            startTimer();
34
35            $(window).on('resize', setOffset);
36            stage.on('mouseover', stopTimer);
37            stage.on('mouseout', startTimer);
38
39        });
40    };
41})(jQuery);
42
43$(document).ready(function() {
44    $('.sqrspotlight').sqrSpotlight();
45});