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