Responsive 27"

Hello,
I would like my site to be responsive for 27 “formats. On my screen 18” the site is very good for my client who is on imac 27 "the display is not done correctly.
there are a particular code?

www.labo52.fr

Hello @jbear,

Can you please specify the issue(s)?

Kind Regards, Roman.

the vertical menu wasn’t at the good place…

Hello @jbear,

So everything is okay now?

Kind Regards, Roman.