Format Object

This object represents the allowed size for a banner impression. These are typically used in an array where multiple sizes are permitted.

Attribute	Triplelift Required	Type	Description
w	no	integer	Width in device independent pixels (DIPS)
h	no	integer	Height in device independent pixels
wratio	no	integer	Relative width when expressing size as a ratio
hratio	no	integer	Relative height when expressing size as a ratio
wmin	no	integer	The minimum width in device independent pixels at which the ad will be displayed the size is expressed as a ratio
ext	no	object	Placeholder for exchange-specific extensions to OpenRTB