Thank you very much! That did the trick! Although the closing " is needed ;-):
... style="width:50px; ...
One thing however, now the submenus do not line up properly. They vary between 10px-15px to the left of the 'Level 0' nav tab... in other words, the top tab and dropdown are not flush left (in this case)...
Any thoughts on how to control the location of just the 'Level 1' tabs?
Thanks again for your help, very much appreciated!