Sticky media
caution
Only works if page is loaded directly going to the address of the page with sticky media. It doesn't work coming from another page on the same site.
Example
If you refresh this page, it will work. If you click to this page's link from the landing page, it won't.
You may add a sticky video by giving sticky-popup class to an a tag.
<!-- md content above -->
<a className="sticky-popup" target="_blank" href="https://www.youtube.com/watch?v=uRgQ_TpTj4g">Sticky video</a>
<!-- md content below -->