diff --git a/less/_table.less b/less/_table.less
index 317202cd..3a4d3486 100644
--- a/less/_table.less
+++ b/less/_table.less
@@ -1,3 +1,5 @@
+// specification: https://www.google.com/design/spec/components/data-tables.html
+
 table {
   width: 100%;
   font-size: 12px;