Rename formatNodes to formatCSS

src/lib/formatCSS.js

@@ -0,0 +1,15 @@
+function indentRecursive(node, indent = 0) {
+  node.each &&
+    node.each((child, i) => {
+      if (!child.raws.before || child.raws.before.includes('\n')) {
+        child.raws.before = `\n${node.type !== 'rule' && i > 0 ? '\n' : ''}${'  '.repeat(indent)}`
+      }
+      child.raws.after = `\n${'  '.repeat(indent)}`
+      indentRecursive(child, indent + 1)
+    })
+}
+
+export default function formatNodes(root) {
+  indentRecursive(root)
+  root.first.raws.before = ''
+}