Add a file with a very long name in 1 word in your private files Create a course with a very long shortname in 1 word Rename a section to a very long name in 1 word Add the block "Private files" to the course Make sure that the following wrap over a few lines and does not overlap the content The file name in the Private files block The section name in the nav block The course shortname in the nav block The file in block private files Repeat with very long names in a few words, and make sure they wrap as expected .