I want to add img filter to specific page

Hello there!! I added a CSS filter to my image to make transitions from b&w to color, but I only want to aply to only one of the pages, the images in every other page  should be in directly in color. I paste the code I have.

Thanks!

.image-block { filter: grayscale(100%); transition: filter .5s ease-in-out;}  .image-block:hover { filter: none;}

replace .image-block in 2 codes with image-block-id

Find id with this tool. https://chrome.google.com/webstore/detail/squarespace-collectionblo/bggpdfnccodbnmcndckmeehdjkjojkde

5 hours ago, tuanphan said:

replace .image-block in 2 codes with image-block-id

Find id with this tool. https://chrome.google.com/webstore/detail/squarespace-collectionblo/bggpdfnccodbnmcndckmeehdjkjojkde

Wow!!! This is really helpfull!! Guess I have to get into CSS from now on! Thanks you so much!! Have a nice day!