Lock Please

Go to Display > Colors > CSS Stylesheet
Find

Code:

#warp

You can see that there's width: 70%; inside. Change 70% to pixels(example 900px or put another number in percents)

If you don't have #warp in that white box, add it.
Just add this

Code:

#warp {
width: 70%
}

And change percentage

Thanks for your reply.

I couldn't find that code and when I tried to add it this appeared?

Have you tried to copy whole default CSS code and put it to the empty box?

Yeah the basic one is in the box, but it seems to be editing itself after I save it and leave the admin panel?

delete default
only add the edited part

Tried it, makes no difference

PROBLEM SOLVED = WAS AN ISSUE WITH THE PORTAL

THANKS FOR THE HELP GUYS