HI!

Please use the YouTube element.

Unfortunately, there is no separate element for this.
But such functionality is present in the portfolio elements.

https://codex-themes.com/thegem/documentation/#types-of-portfolio-items

Please use this code"

<a class="fancybox" href="javascript"> [gem_icon  centered="1"  pack="userpack" size="large" icon_userpack="e622" color="#ffffff"] </a> 
<script>
var ready = (callback) => {
    if (document.readyState != "loading") callback();
    else document.addEventListener("DOMContentLoaded", callback);
};
ready(() => {
    var elem = document.querySelector(".fancybox");
    elem.setAttribute('data-fancybox', '');
    elem.setAttribute('data-type', 'iframe');
    elem.setAttribute('data-src', 'https://www.youtube.com/embed/r43LhSUUGTQ');
});
</script>
<style>
#link {display: none} 
</style>