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