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