Hack away css border for Safari only (#1485339)

skins/default/common.css

@@ -76,8 +76,7 @@ input, textarea
 }
 
 input[type="checkbox"],
-input[type="radio"],
+input[type="radio"]
-input[type="file"]
 {
   border: 0;
   padding: 0;

skins/default/mail.css

@@ -441,6 +441,7 @@ body.messagelist
 
 /* safari hack \*/
 html>body*#messagelist[id$="messagelist"]:not([class="none"]) { table-layout: auto; }
+html>body*input[type$="file"]:not([class="none"]) { background-color: transparent; border:0; }
 /**/
 
 #messagelist thead tr td