First of all, I don't know if this question may fit better on another SE site. Please flag if you think it should be migrated.
Background
Leading from my answer at Center fixed div with dynamic width (CSS), I observe on comments that there is a kind of misunderstanding due to the term dynamic with.
There are also over 5k questions on SO regarding this term. On the 90% I reviewed this misunderstanding seems to happen to.
It seems clear for everybody that "dynamic width" refers to adaptable width, but there are at least 2 possible cases:
- The element adapts to it's parent width (i.e,
width: 90%) - The element adapts to it's content size (i.e.,
display: inline-block)
The question
There is a consensus at the community for the meaning of dynamic width?
No, there isn't.
There isn't any source or reference that formally defines the term, thus both cases apply. To avoid misunderstanding, explain on the context of a question or assertion if it refers to the parent or the content.
来源：https://stackoverflow.com/questions/35198428/terminology-does-the-meaning-of-dynamic-width-have-a-consensus