Exempt in test.

Author: isoos

pkg/web_css/test/expression_test.dart

@@ -48,6 +48,7 @@ void main() {
       expressions.removeWhere(
           (e) => e.startsWith('detail-tab-') && e.endsWith('-content'));
       expressions.removeWhere((e) => e.startsWith('package-badge-'));
+      expressions.removeWhere((e) => e.startsWith('pub-toc-node-'));
       // shared CSS file (with dartdoc)
       expressions.removeAll([
         'cookie-notice-container',