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