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