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