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