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