The W3C created the Arena web browser as a testbed and testing tool for HTML3, CSS, PNG and other features like the libwww, but after beta 3, Arena was replaced by Amaya.
W3C建立了Arena網頁瀏覽器作為HTML3、CSS、PNG和其他特性如Libwww的試驗平台和測試工具，但在beta 3之後，Arena被Amaya取代。