Anyone made the free Synved shortcodes responsive?

Very new to wordpress, but can code.

I’m using the synved free shortcodes, which offer a great set of features. But they are not responsive – widths are in fixed percentages. So when a window is dragged smaller to simulate, say, a tablet or phone, the columns just get smaller and smaller. I tried setting a min-width to some of the columns, so that they drop below each other when the screen width is small, but that’s not perfect as they then stay that size, leaving gaps to the side. A true responsive column would then enlarge back to the screen width.

Has anyone edited the css to make them responsive? This would make them an extremely useful set of shortcodes indeed!

I suspect only the css for the columns needs to be edited, but responsive code is one thing I’ve never tried before.