Courses not aligned in Moodle

Hi...

I have a question about Moodle. When we put in the moodle a course, this appears not centered...  with more margin upper than bottom, more left than right

I have changed the align in the course html, the margins to auto but still not showing ok. If a run the course directle in chrome, it appers in the top with a little more right margin that left.

Any suggestions?

Thanks for help.