More styling for error messages.
More styling for error messages.

Islandora/internet_archive_bookreader,openlibrary/bookreader,yankl/bookreader,internetarchive/bookreader,openlibrary/bookreader,garyrh/bookreader,brisandbeans/bookreader,yankl/bookreader,garyrh/bookreader,Islandora/internet_archive_bookreader,brisandbeans/bookreader,niksu/bookreader,yankl/bookreader,brisandbeans/bookreader,garyrh/bookreader,garyrh/bookreader,niksu/bookreader,niksu/bookreader,yankl/bookreader,yankl/bookreader,nikolas/bookreader,Islandora/internet_archive_bookreader,Islandora/internet_archive_bookreader,nikolas/bookreader,garyrh/bookreader,openlibrary/bookreader,brisandbeans/bookreader,openlibrary/bookreader,Islandora/internet_archive_bookreader,niksu/bookreader,brisandbeans/bookreader,niksu/bookreader,openlibrary/bookreader,internetarchive/bookreader