diff --git a/htdocs/takepos/css/pos.css.php b/htdocs/takepos/css/pos.css.php
index 7d4fd9be051..5f0006d24fe 100644
--- a/htdocs/takepos/css/pos.css.php
+++ b/htdocs/takepos/css/pos.css.php
@@ -153,7 +153,7 @@ button.actionbutton {
 	vertical-align: middle;
 	text-align: center;
 	overflow: visible; /* removes extra width in IE */
-	width:33%;
+	width: calc(33% - 2px);
 	height: calc(25% - 2px);
 	margin: 1px;
    	border-width: 0;