Resize AjaxFileUpload control

When the AjaxFileUpload control is displayed it is a particular height and I cannot seem to change it.  It seems to respond to Width but not Height?

<cc1:AjaxFileUpload runat="server" ID="afuFileUpload1" Width="400px" MaximumNumberOfFiles="1" 
    OnUploadComplete="afuFileUpload1_UploadComplete" OnUploadCompleteAll="afuFileUpload1_UploadCompleteAll" 
    Height="400px" OnClientUploadStart="showWaitCursor" OnClientUploadCompleteAll="uploadCompleteAll"
    OnClientUploadError="uploadError" />

Thanks in advance.