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