show livestream as background of button card

[Nemesis24]

- type: custom:button-card
   entity: camera.porte_sud
   show_live_stream: true
   show_name: false

how can i have the livestream getting 100% of the button card ?

tx for answers

[Mariusthvdb]

type: custom:button-card
entity: camera.buienradar
show_live_stream: true
show_name: false
size: 100%
styles:
  card:
    - padding: 0

[Nemesis24]

TY very mutch !!!