In what screen dimension are you viewing this? Because from my 1600×1200 screen, the mega menu looks just ok. Please see screenshot.
Please try this code:
@media (min-width: 1024px) and (max-width: 1060px){
nav .codeless_custom_menu_mega_menu.codeless_mega5 {
width: 900px !important;
}
}
Add it into your custom css box and change the values to your wish. Until you get the wanted result.
Let us know.
