How to align box on the dropdown menu?

Question

I'm trying to make a site, doing what I know, and learning something I need.

My site is: http://dhems.x10.mx/home/

It's based on Joomla, And I wanna learn one thing, how can I center the box of dropdown menu "layouts", I saw on developer tools on chrome that "-webkit-transform: translate (-50%)" are strikethrough on ".mega-align-center" but I don't know what to do!!

ps: in the backend it's centered, only on frontend not.

Thanks in advance.

Answer 1

Changing the class .t3-megamenu .mega-align-center>.dropdown-menu (line 1672) value to left: -246px; would od the trick as it is the half of the container width minus the width of the navigation link.