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