export const zIndexBase = 0 ; const above = 1 ; export const zAboveBase = above + zIndexBase ; export const zLayoutFooter = above + zIndexBase ; export const zLayoutModal = above + zAboveBase ; export const zLayoutModalBackDrop = above + zAboveBase + zIndexBase ; export const zLayoutPopUp = above + zLayoutModal ; export const zBelowBase = zIndexBase - above ;