--- a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SingleIndexWriter.java	Thu Nov 16 20:25:45 2017 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SingleIndexWriter.java	Thu Nov 16 15:01:45 2017 -0800
@@ -102,7 +102,7 @@
             body.addContent(htmlTree);
         }
         HtmlTree divTree = new HtmlTree(HtmlTag.DIV);
-        divTree.addStyle(HtmlStyle.contentContainer);
+        divTree.setStyle(HtmlStyle.contentContainer);
         elements = new TreeSet<>(indexbuilder.getIndexMap().keySet());
         elements.addAll(configuration.tagSearchIndexKeys);
         addLinksForIndexes(divTree);