CSS grid is a very interesting spec, however writing the code is quite confusing, with multiple weird naming and positional conventions, resulting in complex, hard-to-read values scattered across multiple properties. So a lot of room for error or poor choices of which part of the API to use and how exactly to apply it. Not that I could write a better spec, I guess it's just fundamentally complicated.
With other words, there's a lot of value in creating a visual UI that does this for you.
CSS grid is a very interesting spec, however writing the code is quite confusing, with multiple weird naming and positional conventions, resulting in complex, hard-to-read values scattered across multiple properties. So a lot of room for error or poor choices of which part of the API to use and how exactly to apply it. Not that I could write a better spec, I guess it's just fundamentally complicated.
With other words, there's a lot of value in creating a visual UI that does this for you.