
Hey Alex,
You can add your animation in the sticky parameters, but also make sure to enqueue the animation
uikit component which is part of core components and not add-ons. So make sure you have that in your enqueue callback function:
beans_uikit_enqueue_components( array( 'animation' /* more components you may have */ ) );
Then you can add your animation as such:
beans_add_attribute( 'beans_header','data-uk-sticky',"{top:-300, animation:'uk-animation-slide-top'}" );
Have fun,

Thank you! It's so simple 🙂

Alexandra can you please post the full code and CSS so we all can learn?