Greetings

I have not been successful blocking a page or element on my website.      Everything appears to go correctly when I create the block with the following code being created.
Element
Pathbody > div#g-page-surround > div:nth-child(5) > section#g-feature > div:nth-child(1) > div:nth-child(2) > div > div > div > div > div > p:nth-child(3) > span > a:nth-child(1)

I am using Joomla! 3.8.1 Stable with a Rocket theme template and Gantry 5.4.18 Jlex Block ver 5.15.

Thanks for you help
Russ