Are theme widths adjustable?
The theme widths can be changed in the stylesheet.css file. However, I cannot
offer support at this time.
If you wish to make changes to the theme files, please consider using a child theme or a Custom CSS plugin. Otherwise, any future theme updates, will over-ride changes you make to the theme files.
Also, it is highly recommended you have advance knowledge of CSS and Media Queries for mobile and tablet devices.