## Draft 3.1

* Improve the formatting of the syntax examples.

## Draft 3

* Disallow ambiguous binary operators in the `'(' Expression ')'` option for the
  `MediaFeature` production.

## Draft 2

* Refer to CSS's `<ident-token>` rather than a Sass-specific `Identifier`
  production.

* Clarify how to consume CSS's `<declaration-value>`.

## Draft 1

* Initial draft.