JSFiddle - React, Tailwind, and code Playground
HTML
<p class="testeA">
123 456
</p>
<hr>
<p class="testeB">
123 456
</p>
CSS
.testeA {
font-variant-numeric: oldstyle-nums;
}
<p class="testeA">
123 456
</p>
<hr>
<p class="testeB">
123 456
</p>
.testeA {
font-variant-numeric: oldstyle-nums;
}