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