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