Hello,

We are glad that we could be of some help 🙂

You can try out the following Custom Selector in this regard on your Site under the Dashboard > Theme Settings > Typography > Advanced > + Add Rule > in that you need to select Custom Selector > then you need to paste the below-given CSS class:

.wd-tabs-header .wd-nav-tabs-wrapper ul li a span

After that, you can set the Font adjustments accordingly. See this image for reference: https://ibb.co/5sQpmT3

Best Regards.