Ruby,
You set the widget width to be 640px while initializing it, which kicks in one of our ‘large display’ modes. I would recommend setting something smaller while initializing (< 520) or don’t set it which should render a smaller font, almost exactly like how it was before. Hope that or Alex’s comment above can help you here.
Krysteo,
At different widget widths we tweak the display in a few ways so that it looks great for that width. Previously we did it only for 2 width breakpoints, but now we have a few more display treatments to look better for different use cases.