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