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