Thanks for replying! I apologize for not being more clear. Those are the blog posts. Galleries within the blog posts is what I'm struggling with. If I set the gallery within the blog post to have 2 columns, then it has two columns no matter where it shows up (desktop or mobile). I'd like it to have one column of photos on mobile and whatever number of columns on desktop that I set it to. Not all blog posts are set to two columns, but most are. This one specifically has two columns set: https://www.heylaraye.com/blog/john-day-fossil-beds-painted-hills. Thanks for your assistance.