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