Just tested it and yes it works fine, at least the JavaScript command that it is using.
Since this is all just JavaScript you can take bits and pieces from anything posted by Dan and test it in the console. What I did was load a record up that had dropdowns and then hit f12 to open the console in Chrome, pasted "
$('#formContents select').css('min-width','5em');" in there and bam, resized.
I don't see anything in the IOL part that would cause it to not work but I didn't test that either, just the command above.
The fields will be resized based on what is in them though. Looking at my example below the field names you see above are also the largest text entry in the dropdown, to give you an idea how they resize. The first picture is how they look by default and the second one is after entering the command above.
