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