How to increase left margin in Studio?

When the Studio theme is viewed in iPhone, there is zero left margin, which makes it slightly more difficult to read the words, as they are touching the left edge of the screen.

In the screenshot below, the words "Studio is all about making..." and "With studio and buddypress you get..." and
"You can feature content easily..."
etc - are all showing zero margin.

How do I increase/add a left margin area, to bring/move the text away from the left edge of the screen?