Gallery Slideshow — removing image hover effects

Hey everyone!

I am using this code globally:

a:link img {
opacity: 1.0 ;
}

a:hover img { 
opacity: 0.5;
}
 

However, I now need to have a single image from the homepage banner link to a URL. The images are set to swap out without any animation every 3 sec. Problem is when I mouse over the linked image, weird transparency strangeness happens. 

In my mind there are two ways of fixing this, but I am not sure which is easier/would work best. One is to override image hover effects on the home page only. The other is to stop the banner images to continue swapping to the next one for as long as someone is hovering over. My preference would be this, with code that is not targeting any ID since these images could change frequently and be updated by people with zero tech skills. So either Custom CSS or Page Header code would be amazing.

https://owl-sepia-z53p.squarespace.com/ — in progress site, no password.

Thank you all so SO much for your help!

To exclude some images from your code, you can use this simple tips

(1) First, edit your image >> Edit ALT and add this to alt text

no-hover

(2) Edit your code to this

a:link img {
opacity: 1.0 ;
}

a:hover img { 
opacity: 0.5;
}

a:hover img[alt*="no-hover"] {
opacity: 1 !important;
}

That's super cool, and will work for a lot of things, but unfortunately here I am dealing with gallery images... All I have is Description and URL, no option for alt. Is there a way to do that with a description? 

@heyawaiszahid totally works and gets the job done. I would be curious to the drawbacks, but in the end, if I dont come across them it really doesnt matter!  😄 thank you so much for your help! 

@undefined I'm glad it helped. Since we don't currently have another linked image on the homepage, it's okay to exclude all homepage links. However, this approach won't work if you plan to add a few image links to the homepage later on. There are a few solutions to that as well, but let's not complicate a simple thing when it's not necessary.