My solution. I added via functions.php the following:
function my_login_logo() { ?>
<style type="text/css">
.login #backtoblog{
float: right;
position: relative;
top: -35px;
}
</style>
<?php }
add_action( 'login_enqueue_scripts', 'my_login_logo' );
That code move to right side and a little to top the ‘Back to Blog/site’ link.
Hope that helps!