adding height style attribute when decoration spring js dojo combox

[tapha]

I have a spring js dojo combo box and when rendered, its height spans almost the entire page. Is there anyway to set the height attribute when decorating the element as follows:

<form:select id="pays" path="pays">			
   <form:option value="" label=""/>
   <form:options items="${countries}" itemValue="description" itemLabel="description"/>				
</form:select>

<script type="text/javascript">		
    Spring.addDecoration(new Spring.ElementDecoration({	
       elementId : "pays",		
       widgetType : "dijit.form.ComboBox",
       widgetAttrs : { style: "height:50px;" }
    }));   
</script>

I have no idea why it's not working.