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