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