The lesson page seems to have a problem. When someone opens the resources tab, for example to watch the video associated with the lesson (or to read its translation), the lesson’s text does not wrap around the now opened resources tab, instead it is covered by it. Here is a screenshot of the issue:
I’m using Firefox 4.0 on a 64-bit Windows 7 computer.
@adalbertolito - There is a problem on the lesson page. For now, please just close the tabs window when you are done using it to see the full text. We hope to have a fix uploaded in the next week.