Tabs – Style not applied

I am trying to use the style option with the Tabs shortcode.

Other options are working (such as “vertical”). But the style option is not getting applied to the frontend.

Here is what my shortcode currently looks like:

[su_tabs style="modern-dark" vertical="yes"]
[su_tab title="In Person" disabled="no" anchor="" url="" target="blank" class=""]
In-person tab content goes here.
[/su_tab]
[su_tab title="Online (Live Streaming)" disabled="no" anchor="" url="" target="blank" class=""]
Live Streaming tab content goes here.
[/su_tab]
[/su_tabs]

I am using the Variations WordPress theme. But the style is also not working when I try switching to the WordPress Twenty Twenty-Four theme.

Thoughts?

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