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