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