#674082 by seutje: Fixed Table borders are not correctly drawn in Webkit in Seven theme

themes/seven/style.css

@@ -506,6 +506,13 @@ table.system-status-report tr.error {
   color: #8c2e0b;
   background-color: #fef5f1;
 }
+/**
+ * Exception for webkit bug with the right border of the last cell
+ * in some tables, since it's webkit only, we can use :last-child
+ */
+tr td:last-child {
+  border-right: 1px solid #BEBFB9;
+}
 
 
 /**