How to change HomePage style - Theme BuddyPress Business

Hi,

On my Home Page, in the feature block as well as the 'latest posts' block, i am unable to manage my text : size, bold, italic... even the "/br" is unuseful.

Also, may I have more spaces (lines) in the feature block for my text ?

And finally, is there a way to make my feature image clickable (linked to a page of the site)

Any idea or trick to change that ?

Thanks in advance for your help.
Pascal