Float inside of float

Hi,

i have this page:

http://www.tirengarfio.com/web/frontend_dev.php/miembros

login: fer
password: m

As you can see there is a filter. As you can see there is a widget below the word "de".

How can i put that widget on the right of "de" instead of below?

This is my .css:

#item_filtro_edad_desde{
	
	float: left;
	
}

#edad_desde_etiqueta{

	float: left;
    	
}

#edad_hasta_etiqueta{

	float: left;
    	
}