Undo ab29a6e. It broke nested media queries.

NV · NV · commit fcdef9f6de09 · 2019-11-13T15:28:36.000-08:00
diff --git a/lib/parse.js b/lib/parse.js
@@ -399,6 +399,7 @@ CSSOM.parse = function parse(token) {
 							prevScope = currentScope;
 							currentScope = parentRule;
 							currentScope.cssRules.push(prevScope);
+							break;
 						}
 
 						if (ancestorRules.length === 0) {

Original file line number	Diff line number	Diff line change
`@@ -399,6 +399,7 @@ CSSOM.parse = function parse(token) {`
`399`	`399`	`prevScope = currentScope;`
`400`	`400`	`currentScope = parentRule;`
`401`	`401`	`currentScope.cssRules.push(prevScope);`
	`402`	`+ break;`
`402`	`403`	`}`
`403`	`404`
`404`	`405`	`if (ancestorRules.length === 0) {`