Here’s how to add a unique css id everytime you chose a language in Transposh WordPress Translation widget .
This will allow you t fix some alignment issue if some of the words in other language are too long or too short. 

<body id="<?php echo transposh_get_current_language(); ?>" <?php body_class(); ?>>

Example: 

#ru #header #mainNav ul li.scores-prof {
 max-width:284px;
}

#es #header #mainNav ul li.scores-prof {
 max-width:220px;
}

#es #header #mainNav ul li.wishlist {
width: 110px;
}

DEMO: http://chaconiamusic.com/