diff --git a/sharethis.module b/sharethis.module
index 9ae446f..e43073a 100644
--- a/sharethis.module
+++ b/sharethis.module
@@ -577,7 +577,7 @@ function theme_sharethis($variables) {
       'st_url' => $m_path,
       'st_title' => $title,
       'class' => 'st_' . $display . $type,
-      'style' => 'background:none; border:none; padding:none;',
+      'style' => '',
       'role' => 'button',
       'tabindex' => 0,
     );