There are three positioning & layout options for Offerbox.
Position Options
The default position is the bottom position.
Default Floating Button Position for Offerbox (Bottom)
You can also choose to show the floating button on sides
Offerbox on the left side of the screen
Offerbox on the right side of the screen
Changing Position
To change position, click "Configure" tab in Navigation and go to "Display" section
Offerbox Position Settings