I Want to Create Post with Grid Style. But There is An Error


I want to Create Blog Post with Grid and Hover Effect.

I got Many Examples, But I am Stuck with an Error.

Every Website states that i should Find “<data:post.body/>” and replace SECOND and THIRD code with their Code.

But the Problem arising is that I only see two of them. Whereas Every Website states that i will find three of Them.

please Help me. What do i do ?

regards, Jayesh.`