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