Mushroom Chips are a different animal. Use this as an example…
type: custom:mushroom-chips-card
chips:
- type: template
entity: fan.bedroom_fan
icon: mdi:fan
icon_color: green
tap_action:
action: more-info
card_mod:
style:
mushroom-template-chip:nth-child(1)$: |
ha-state-icon {
animation: rotation 2s linear infinite;
}
@keyframes rotation {
100% { transform: rotate(-360deg); }
}
Refer to this thread Mushroom Cards - Build a beautiful dashboard easily 🍄 (Part 2)