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