inconsistent body padding throughout site (mobile)
I said "body padding" in the title, but I don't think it's actually an issue with the CSS "padding" property of the HTML "body" element; rather, I am referring to the fact that some content is separated from the edge of the page by some nonzero distance (e.g. the footer area in the leftmost screenshot), whereas other content is not separated from the edge of the page (e.g. the blog posts in the leftmost screenshot).
On a mobile device, I prefer not to have click-able elements against the edge of my screen as I sometimes have trouble reaching them with my fingers (phone case gets in the way).