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