Megamenu justify T3 2.1.6

Hi,

In the previous version 2.1.3 I was able to use the justify dropdown for the megamenu by setting the following in the megamenu.css file:

.t3-megamenu .row {
margin-left: auto;
margin-right: auto;
max-width:1170px;
}

In the current version the megamenu dropdown is having the same width as the container of the content, and I cannot find from where i can change it like in the previous version . How can i set that on justify option the dropdown to be full width (from left to right of the screen).

Please help, the client want that feature.

Bogdan A.