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