Images within Tables

In a development site, we are using Tablepress. The website is based upon RWD. We have tried adding images as one of the columns in a table. This works well until we resize the screen to a smaller size. The table then swaps the rows to become columns and the columns to become rows – no problem with that. The problem now becomes twofold:

a. The row with the images are different heights between the columns so the rows no longer align as you scroll horizontally
b. The row with the images has a varies in height (width).

This leads me to two questions:

1. Is there a way to force the rows to align? (and to ensure the row labels align with each row?)

2. How can one ensure that all the cells with the images in them are of the same dimension?

Thanks,