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