Image hover effect on links NOT gallery blocks

Hey @tuanphan would greatly appreciate your help here! I've seen you've helped people out on similar issues but can't find a fix for this specifically. 

I've added some CSS so any links (text and image blocks) have an opacity hover effect. But now my gallery block content also is affected by the same effect, as if they're links when they're not.

Is there a way to keep the link hover but stop it affecting galleries too? 

This is the code I used: 
 

a:hover {
opacity: 0.9 ;
}

And this is the link to my site if you need it: https://chameleon-kangaroo-z3l8.squarespace.com/
PW: onetwo3

Thanks in advance!

Where is gallery block on your site?

Ah sorry, its on each project page, e.g. https://chameleon-kangaroo-z3l8.squarespace.com/attainable

@tuanphan – perfect, thanks so much!