Bootstrap v4.4.1 

for tempocasa mega menu

https://welcm.uk/blog/mega-menu-with-bootstrap-4
https://www.vishalon.net/blog/bootstrap-4-mega-menu-example --> Gave w-100 idea on row.nthat fixes issue (col 12 was small) see index3.html
* https://bbbootstrap.com/snippets/dropdown-megamenu-64049191


https://www.youtube.com/watch?v=WcguEPP456Q

To make on hover instead of on click:

<!-- <a id="megamneu" href="" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" class="nav-link dropdown-toggle">Magazine</a> -->
<a id="megamneu" href="https://www.tempocasa.it/blog" class="nav-link dropdown-toggle">Magazine</a>

.dropdown:hover .dropdown-menu {
    display: block;
   
 }

nav_overlay_menu_mas_bs5 has a clean solution (not bloated by old code)  --> is ok (it was imported in this directory) navbar.html