diff --git a/src/epub/css/local.css b/src/epub/css/local.css
index c5c118f..a0daf56 100644
--- a/src/epub/css/local.css
+++ b/src/epub/css/local.css
@@ -87,7 +87,7 @@ table{
 
 table th,
 table td{
-	border: 1px solid black;
+	border: 1px solid;
 	padding: .5em;
 }