diff --git a/apps/files_sharing/css/authenticate.css b/apps/files_sharing/css/authenticate.css
index ac76d4c687..43707c7610 100644
--- a/apps/files_sharing/css/authenticate.css
+++ b/apps/files_sharing/css/authenticate.css
@@ -11,7 +11,8 @@ input[type='submit'] {
 
 #body-login input[type='submit'] {
 	position: absolute;
-	top: 0px;
+	top: 0;
+	border: none;
 }
 
 fieldset > p {