Hi @radikris!
Instead of passing className to the BuilderComponent, can you try wrapping the <BuilderComponent>
in a div, for example:
const MyComponent = (props) => (
<div className="wrapper-class-names">
<BuilderComponent
content={props.content}
model="section-test"
style
/>
</div>
)
You can also learn more about using Tailwind CSS with custom components and Builder layers here.