How to use with b-tab-item?

[asmaloney]

This project seems to be what I'm looking for, but I can't seem to get it to work with b-tab-item.

<b-tab-item label="Tab Name">
    <span title="Badge top right" class="badge">42</span>
    ... contents
</b-tab-item>

Puts 42 (unstyled) at the top of the contents.

I tried using display: relative on a variety of elements without success.

What am I missing?