Simple Frame - Plain 1&2
These effects are basically two of the same, except for a small difference at the extremes of the Corner Size.
Corner Size in Plain 1 is in pixels while Corner Size in Plain 2 is a percentage between the minimum size (0) and the maximum size (1440 pixels).
The feature images above show the differences between the two.
Compare the two sets of parameters at the right side.
This effect works in any size media.