更新

node_modules/css-tree/lib/syntax/node/Operator.js

@@ -0,0 +1,21 @@
+// '/' | '*' | ',' | ':' | '+' | '-'
+export const name = 'Operator';
+export const structure = {
+    value: String
+};
+
+export function parse() {
+    const start = this.tokenStart;
+
+    this.next();
+
+    return {
+        type: 'Operator',
+        loc: this.getLocation(start, this.tokenStart),
+        value: this.substrToCursor(start)
+    };
+}
+
+export function generate(node) {
+    this.tokenize(node.value);
+}