A simple solution would be something like this:
Front template:
<div class="centered-block">{{Front}}</div>
Styling(css):
.card {
text-align: center;
}
.centered-block {
display: inline-block;
text-align: left;
/* Uncomment if you want to set the maximum width of the block */
/* max-width: 60vw; */
}
Screenshot:
