Webtemplate as iView without scrollbars!?

Hello...

I published a webtemplate to EP7.0. Then I create a new page and assign the iView. Now my webtemplate will be displayed in the portal.

BUT, if I would display the whole template it is necessary to scroll!? 😔 How can I customize the iView or Webtemplate size? I would display the iView without scrollbars? Thx...