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