Refactor print preview web ui

chrome/browser/resources/print_preview/settings/page_settings.css

Index: chrome/browser/resources/print_preview/settings/page_settings.css
diff --git a/chrome/browser/resources/print_preview/settings/page_settings.css b/chrome/browser/resources/print_preview/settings/page_settings.css
new file mode 100644
index 0000000000000000000000000000000000000000..cabdf7fc29a801a846f09b9e684b5c24a1ec3844
--- /dev/null
+++ b/chrome/browser/resources/print_preview/settings/page_settings.css
@@ -0,0 +1,13 @@
+/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#page-settings .page-settings-custom-input.invalid {
+  background: rgb(255, 240, 240);
+  color: rgb(140, 20, 20);
+}
+
+#page-settings .page-settings-print-pages-div {
+  white-space: nowrap;
+}