Reducing Left/Right Content Padding for Mobile Only

I first just want to preface this with the fact that I unfortunately cannot post the website link due to it being for a client project that is a work-in-progress, and do not have permission to make the site live at this time. 

I am using the Camino template, and on desktop there is a pretty large left/right content padding. When on mobile, this padding translates to a very short line-length, and overall doesn't work well. This doesn't apply to the header or footer, just the content of each page.

I am looking to reduce this left/right content padding for mobile only, ideally to the padding that the header and footer have on the site. 

I would really appreciate any help or guidance!

Thanks

Hi. If the site is private or trial, you can setup password & share url. If you can't share public, you can send me a message.

We can check easier.