Element block pseudo-element :after generated with margin 0px transition font-size 16px display block float none height auto overflow hidden border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal padding 20px background box-sizing content-box transform line-height 1 position static width 160px border 0px rgba(0,0,0,1) solid z-index auto cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2)