uk-hidden@s	Only affects device widths of 640px and larger.
uk-hidden@m	Only affects device widths of 960px and larger.
uk-hidden@l	Only affects device widths of 1200px and larger.
uk-hidden@xl	Only affects device widths of 1600px and larger.uk-hidden@s	Only affects device widths of 640px and larger.
uk-hidden@m	Only affects device widths of 960px and larger.
uk-hidden@l	Only affects device widths of 1200px and larger.
uk-hidden@xl	Only affects device widths of 1600px and larger.

Questo è l'elenco di classi per nascondere un elemento
Lo metti dove c'è scritto CLASS nel builder