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