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