Increase page width

Hi folks,

I can’t seem to be able to extend the width of my website to the full screen size when viewing with desktop. I have tried modifying the max-website width values and the Wrapper values in main.css etc but this leaves it all a bit messy as then need to modify sidebars widths and margins etc.

I was hoping there would be a high level css property in the theme that I could edit that would widen the page in a neat and tidy fashion.
I am using 2 col layout, content left.
Any help is appreciated.
Cheers,
Matt
https://www.runningfastr.com/

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