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