Hi,
You can add in display:flex and flex-wrap: wrap; for the CSS selector nav .main-nav .mega-menu > ul within your child theme’s style.css.
To put simply, you change this:
nav .main-nav .mega-menu > ul {
position: absolute;
width: 100%;
left: 0 !important;
}
to this:
nav .main-nav .mega-menu > ul {
position: absolute;
width: 100%;
left: 0 !important;
flex-wrap: wrap;
display: flex;
}
Here’s how it will look like if successfully applied: https://share.getcloudapp.com/nOuDbPAp