diff --git a/source/web/css/main.css b/source/web/css/main.css
index 3ea3854a03..48899ebfd4 100644
--- a/source/web/css/main.css
+++ b/source/web/css/main.css
@@ -667,7 +667,7 @@ a.topToolbarLinkHighlight, a.topToolbarLinkHighlight:link, a.topToolbarLinkHighl
 .navigatorPanelBody
 {
    height: 330px;
-   width: 220px;
+   width: 100%;
    overflow: auto;
 }