Bedford Template - amend space between banner and text on one page only

Site URL: https://www.theperfectassistant.co.uk/insta-workshop

I'm trying to amend the size of the banner on the Bedford Template. I found the below code on another question but I'd only like it amended on one page. Can anyone help?

main#page { padding-top: 20px; }

I've figured out the answer but will put it here for anyone else that needs it. I found my collection id and then prefixed the above code with:

#collection-1234567890

Obviously the number would be different for every site

To code run on one page, you can target page id (#collection-..)

Or you can also edit the page >> Add a Code Block at bottom of page >> Use this code

<style>
  main#page { padding-top: 20px; }
</style>