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