Sorry, I don’t know the answer…
Just wanted to let you know you can learn in a different order to how it’s laid out if you want - start with the HTML & CSS first if you’re keen to do that.
The ‘front-end’ path does it the other way around, starting with HTML & CSS. There’s a lot of overlap between the two courses (I’ve been following front-end path, am at 71%, and that has equated to 64% of the full-stack course).
So if you have a preference to start with HTML & CSS you might want to start with the front-end path and then do the extra stuff in the full-stack path afterwards.