Different background color for index page (Brine)

Hi. Which index page?

Thank you so much, we’ve added this code to the page settings:

<style>
.Index-page {background-color:#CFCCD6;}</style>

and it didn't work until we’ve noticed that we have to disable ajax loading. 
we are not sure why this was the fault – but now it works perfectly!

If you use code in Code Injection, Page Header, or Code Block, sometimes you need to disable Ajax Loading