Display few rows and/or columns

Hello!

I want to have on the first sheet some rows and some columns. Let' say 10 rows and 7 columns and rest of screen/sheet to be blue.
I set the scroll area but I did not know how to hide the rest of rows/colums....

Private Sub Workbook_Open()
With Sheet1
.ScrollArea = "A1:G10"
End With
End Sub

I appreciate your help!
Tim