Card CSS language

card template CSS in this youtube: https://www.youtube.com/watch?v=3WFf1w_QnBM&t=0s&index=2&list=PLogyLXIDS9mM0RHMmUhrwjuB_Gi_9Hxqa

In front and back template: <span style="font-family: myfont; font-size: 50px; ">{{morphHighlight:Expression}}</span>

In CSS

[mtype=unknown] { color: red; }

[mtype=seen] { color: orange; }

[mtype=known] { color: green; }

[mtype=mature] { color: blue; }