Menu elements not showing up on desktop

Hi there,

The main mega menu (Men > Size Guide) on our website is not showing up properly.
http://dev.fervormontreal.com/

I am using “the look” theme for our website
http://magicaltheme.com/look/look-full/

To integrate the Max Mega Menu, I followed the steps on this page
https://www.maxmegamenu.com/documentation/faqs/theme-integration/

Here is the code:

View post on imgur.com

I assume that there is no residual styling associated in the above code.

Please help me to figure out what is wrong.

Do I need to add any additional CSS to the Max Mega menu?

P.S – We are looking to have a mega menu similar to this website
http://www.monicavinader.com/
Please click on the menus to get the submenu

https://wordpress.org/plugins/megamenu/