I reposted this message as I was confused as Extensions also mention 'templates & themes'.

I want to modify the width of the BlancMont XL theme, but for some reason I do not get it.
Some part I can override with LocalFiles in CSS but on the photo page (picture.php) I do not succeed with the imageToolBar etc.

I got this in the LocalFiles CSS:

#imageToolBar, #imageHeaderBar {
    margin: 10px auto;
    width: 1060px;
}

Do I miss something? The page itself is now 1140px (added 200px).

PS .. I also wonder if it would be easy to modify the way comments are displayed?
I do not like the 2 column ways used in all the templates :-(
I would prefer all in 1 column...