Hi
Yep, that’s what I am after. Am I doing the added CCS in the right place? I’ve gone Appearance, Editor, Templates, Front Page, clicked on the Latest Posts Block and then adding your text to the Advanced ADDITIONAL CSS CLASS(ES) box as follows:
.wp-block-latest-posts__post-excerpt { font-size:12px !important; }
Thank you so much for taking the time to help with this. Sorry if I’m being a bit thick, changing up from a fairly simple site at the moment (www.connectionsbusproject.org.uk) to this more modern style.