Make Grid Box sizes responsive to content?

Does anyone perhaps know how to change the behavior of the boxes in the grid layout of posts? I would like them to be different heights, depending on how much text is included in the entry summary. So the columns would stay aligned, but the rows wouldn’t have to. (Since some summaries would be longer than others.)

I’m just poking around in Firebug and have found these classes referencing what I’m talking about: tc-grid-post, tc-grid-figure, tc-grid-excerpt. Not sure which to try to change. I’m guessing there’s a hook that needs to happen? Sloooowly starting to understand those.

Working locally right now, so don’t have a link to post…

Thanks in advance for any ideas!