Expand Background Module

Greetings

How can I expand the backgrond for the modules?

http://tusanteojos.com/2016/

Check the image.


Thanks

I'm afraid it is not easy.

The last year I used the same template and the code was different

http://simposiodemarketing.com/

Why do you change the template code?

Thanks for your help

Because we add different functionalities and adapt to Joomla changes.

You might think about using body bakground instead but I don't know if it will work well for you.