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