diff --git a/css/glossary.css b/css/glossary.css
index 2146a418e3..56d9289f87 100644
--- a/css/glossary.css
+++ b/css/glossary.css
@@ -44,6 +44,7 @@
 
 #tag-container {
   float: left;
+  width: 100%;
   border-top: 1px solid #8c8c8c;
   border-bottom: 1px solid #8c8c8c;
   padding: 7px 0px;