Ao clicar no link "clique aqui" o mesmo não baixa o arquivo, dando mensagem de erro: http://caelum-online-public.s3.amazonaws.com/avancando-html-css/index.zip
The following error was encountered while trying to retrieve the URL: http://caelum-online-public.s3.amazonaws.com/avancando-html-css/index.zip
Access Denied.
Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.
Your cache administrator is root.