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node_modules/@emmetio/css-abbreviation/README.md

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+# Emmet stylesheet abbreviation parser
+
+Parses given Emmet *stylesheet* abbreviation into AST. Parsing is performed in two steps: first it tokenizes given abbreviation (useful for syntax highlighting in editors) and then tokens are analyzed and converted into AST nodes as plain, JSON-serializable objects.
+
+Unlike in [markup abbreviations](/packages/abbreviation), elements in stylesheet abbreviations cannot be nested and contain attributes, but allow embedded values in element names.
+
+## Usage
+
+You can install it via npm:
+
+```bash
+npm install @emmetio/css-abbreviation
+```
+
+Then add it into your project:
+
+```js
+import parse from '@emmetio/css-abbreviation';
+
+const props = parse('p10+poa');
+/* [{
+    name: 'p',
+    value: [{ type: 'CSSValue', value: [...] }],
+    important: false
+}, {
+    name: 'poa',
+    value: [],
+    important: false
+}] */
+```
+The returned result is an array of `CSSProperty` items: a node with name and values.
+
+## Abbreviation syntax
+
+Emmet stylesheet abbreviation element may start with name and followed by values, optionally chained with `-` delimiter. In most cases, actual CSS properties doesn’t have numbers in their names (or at least they are not used in abbreviation shortcuts) so a number right after alpha characters is considered as *embedded value*, as well as colors starting with `#` character: `p10`, `bg#fc0` etc. If implicit name/value boundary can’t be identified, you should use `-` as value separator: `m-a`, `p10-20` etc.
+
+### Operators
+
+Since CSS properties can’t be nested, the only available operator is `+`.