Reg:Decreasing of space in the window

Hi All

I have developed one custom uwl application in webdynpro abap and integrated onto portal and placed the Iview in tool area in EP .

But due the gap which is created in webdynpro application .Its creating a scroll in portal area .

How can we remove the space in webdynpro abap as we can find the below screen shot .

Please find the webdynpro as well as portal attachments

.The above first screen shot is from webdynpro abap .

Second is from portal after integrating in the tool area .

Thanks & Regards

Deepika