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