Element block pseudo-element :before generated with transition display block box-sizing content-box border 0px rgba(0,0,0,1) solid z-index auto padding 20px box-shadow 0px 0px 1px rgba(0,0,0,0.5) position static float none height auto border-radius background font-size 16px font-weight normal overflow hidden transform cursor default line-height 1 width 160px margin 0px text-shadow 1px 1px 1px rgba(0,0,0,0.2)