How can I add a back button to mobile product pages on Warehouse Theme?

[MJoffroad]

Hello,

I know this has been asked before but none of the solutions have worked... They seem to be a bit older.

Can anyone help me add a back button on product pages for mobile? Im using Warehouse Theme and all of the solutions online show CSS.Liquid files but I only have CSS files in Asset-Theme.

I just want a customer to be able to go back on the page opposed to using the browser.

My website is MJoffroad.com

Thank you.