Flex items are element of flex level, but is that an element of the block level?
According to Chapter 4 of CSS Flexible Box Layout Module Level 1, flex items are considered to be at the flex level and not at the block level.
A flex item establishes an independent formatting context for its contents. However, flex items themselves are flex-level boxes, not block-level boxes: they participate in their container’s flex formatting context, not in a block formatting context.
However, if you read chapter 4 later, it is written that the flex item's display value will be "blockified".
Does blockified indicate that the element is block level? If so, the "flex item is flex level" described above is a mistake.
The display value of a flex item is blockified: if the specified display of an in-flow child of an element generating a flex container is an inline-level value, it computes to its block-level equivalent. (See CSS2.1§9.7 [CSS21] and CSS Display [CSS3-DISPLAY] for details on this type of display value conversion.)
What does "blockified" mean here? Also, are flex items at the flex level? Or is it a blockified block level?
If it interprets as a specification, it will be the contradictory conclusion that "flex item is flex level, not block level but it becomes block level by blockified".