Bulma class:
.is-invisible
<div>Visible div</div> <div class="is-invisible">Invisible div</div>
Preview
Visible div
Invisible div
More in Bulma Helpers
is-clearfix
is-pulled-left
is-pulled-right
is-marginless
is-paddingless
is-overlay
is-clipped
is-radiusless
-shadowless
is-unselectable
is-hidden
is-sr-only
is-relative