1👍
You can use "b-card-subtititle" instead
and it’s easy to change size
check document https://bootstrap-vue.org/docs/components/card
<b-card
no-body
style="max-width: 20rem;"
img-src="https://placekitten.com/380/200"
img-alt="Image"
img-top
>
<b-card-body>
<b-card-title>Card Title</b-card-title>
<b-card-sub-title class="mb-2" style="font-size: 12px">Card Sub Title</b-card-sub-title>
<b-card-text>
Some quick example text to build on the card title and make up the bulk of the card's
content.
</b-card-text>
</b-card-body>
</b-card>
Source:stackexchange.com