Unknown macro: {html}
<iframe src="https://docs.google.com/presentation/d/18y705klwGS0NEnUqDh7wTS-3DDg6jXrv5RQnOR1lc7s/embed?start=false&loop=false&delayms=3000" frameborder="0" width="960" height="569" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>
Unknown macro: {html}
<iframe src="https://docs.google.com/file/d/0B9IltfWcNirnaTBXQ0dMUGNOODA/preview" width="640" height="480"></iframe>