@kishorek1264980 You have to set a specific URL if you are going to use the VEC editor, i.e www.example.com/shop/laptop. Then under Page Delivery for the activity you have to set the contain rule and set it to the domain, i.e www.example.com. Make sure to set the condition to OR and also make sure that the css selector you are using is present on each of those pages.
If it is not working for you please look at the response from the target call to see what is coming back.
Thanks!