[Theme: Motif] How to remove the text from the grid layout boxes?

Hello,

I’ve set up a couple of grid pages on my site, which uses the Motif theme. The grid function works fine except the excerpts displayed are of different lengths – which looks messy. I’m not sure why it displays excerpts of different length.

Does anyone know how to control the length of the excerpt or remove it altogether so its not an issue?

Many Thanks!