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