Long menu that sticks in place

The CMS Questions
1

Hi, I’m trying to have a long menu, and have it stick in place when selecting an item (instead of resetting back at the beginning).

Not really sure how I should proceed; any thoughts?
Here’s the temporary website: http://www.louischarleslasnier.com/.

Thanks!

2

Hm, maybe I’m too tired, but I don’t really understand how the title of this topic relates to your explanation below :thinking:?

3

Nope, I am! My bad, I started from an old message!

4

Here is an example page with sticky sidebar navigation: https://thepaciellogroup.github.io/infusion/

They store the scroll position in local storage. Here is the relevant JS from their site:

/* persist navigation scroll point */
(function () {
  window.onbeforeunload = function () {
    var patternsNav = document.getElementById('patterns-nav');
    if (patternsNav) {
      var scrollPoint = patternsNav.scrollTop;
      localStorage.setItem('scrollPoint', scrollPoint);
    }
  }

  window.addEventListener('DOMContentLoaded', function () {
    if (document.getElementById('patterns-nav')) {
      if (window.location.href.indexOf('patterns/') !== -1) {
        document.getElementById('patterns-nav').scrollTop = parseInt(localStorage.getItem('scrollPoint'));
      } else {
        document.getElementById('patterns-nav').scrollTop = 0;
      }
    }
  })
}());