Transitions an element from class lisn-undisplay (which applies display: none) to lisn-display (no style associated with this).
lisn-undisplay
display: none
lisn-display
The difference between this and simply removing the lisn-undisplay class is that previously scheduled transitions to lisn-undisplay will be cancelled.
transitionElementNow
Transitions an element from class
lisn-undisplay(which appliesdisplay: none) tolisn-display(no style associated with this).The difference between this and simply removing the
lisn-undisplayclass is that previously scheduled transitions tolisn-undisplaywill be cancelled.See
transitionElementNow