Is it possible to animate the icon?

[johndoe0815]

Other cards like button card and bubble card have the feature that you can make the icon rotating, e.g. for bubble card:

styles: |-
.bubble-icon {
animation: ${hass.states['fan.you_fan'].state === 'on' ? 'slow-rotate 2s linear infinite' : ''};
}
@Keyframes slow-rotate {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}

Is that somehow also possible for the timer-bar-card?