Display material design policies grouped by tags.

chrome/browser/resources/md_policy/md_policy.css

Index: chrome/browser/resources/md_policy/md_policy.css
diff --git a/chrome/browser/resources/md_policy/md_policy.css b/chrome/browser/resources/md_policy/md_policy.css
new file mode 100644
index 0000000000000000000000000000000000000000..3f08bc950568980a963b9888ee130062dc8f3e68
--- /dev/null
+++ b/chrome/browser/resources/md_policy/md_policy.css
@@ -0,0 +1,21 @@
+/* Copyright 2015 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. */
+
+:host {
+  display: flex;
+  flex-direction: column;
+  flex-wrap: wrap;
+  margin: 0 auto;
+  max-width: 500px;
+  min-width: 300px;
+  padding: 2px 5px;
+}
+
+#introduction {
+  margin-bottom: 10px;
+}
+
+#policy-groups {
+  margin: inherit auto;
+}