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