I have created this dummy card to test out styling
type: custom:bubble-card
card_type: button
name: TEST
entity: light.guest_room_light
button_type: state
icon: mdi:flask
style: |
:host {
--bubble-background-color: rgba(255,0,0,0.4);
outline: 4px solid red;
}
but for the life of me i cant it to style ,. it wont turn red. What am i doing wrong
