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