Layers

Layers define the depth, or z-index, of an element.

Variable	Default value
--layer-cover	5
--layer-sidedock	10
--layer-status-bar	15
--layer-popover	30
--layer-slides	45
--layer-modal	50
--layer-notice	60
--layer-menu	65
--layer-tooltip	70
--layer-dragged-item	80