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