MDN URL

https://developer.mozilla.org/en-US/docs/Web/CSS/calc

What specific section or headline is this issue about?

The first paragraph

What information was incorrect, unhelpful, or incomplete?

The statement:

It can be used anywhere a <length>, <frequency>, <angle>, <time>, <percentage>, <number>, or <integer> is allowed.

There is a caveat in which calc() cannot be used as a number. If we take a look at the syntax for percentage, we'll see that it states:

The <percentage> data type consists of a <number> followed by the percentage sign (%).

If you were to try to substitute <number> with a calc expression, such as:

.class {
  background-position: calc(100 / 200 * 3)%;
}

It would not be valid.

What did you expect to see?

A mention of this caveat, and likely the removal of the word "anywhere".

Do you have any supporting links, references, or citations?

https://developer.mozilla.org/en-US/docs/Web/CSS/percentage#syntax

Do you have anything more you want to share?

No response

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