Help with formating of archive post excerpts

in my ‘events’ page i have a list of posts of which the formatting doesn’t who up the way it actually is within the post. Click and see. https://www.transformingscotland.com

the example excerpt i’m talking about is “activities in the city”. it doesn’t have the same bold lettering, spacing and paragraph format as in the actual post. Its all over the place really.

Is there a way i can fix it?

thanks for your help