container
An Adaptive Card container on a UI stage: a rounded backdrop that stacks its `items` top to bottom; a `video` inside it is cropped to its `radius`.
container(background=#ffffff h=1 padding=1)
Attributes
backgroundcolour #rrggbbFill of the backdrop (default white).1×hnumber1×paddingnumberInset of its `items` from the backdrop's edge, in stage units (default 20).1×radiusnumberCorner radius of the backdrop, in stage units (default 14).1×wnumber1×xnumber1×ynumber1×