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