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