I override much CSS using the style file but remember having an issue with the built in gallery, just can't remember why.
Appreciate this means another personal update when upgrading but they are hard to escape anyway. So you could just amend:
The gallery is likely to be different every site, so I just include this as standard practice. It's a fairly brief, easy CSS file to work with. May not be the "correct" way but no hassle either.
Check out this plugin: http://gpeasy.com/Plugins?id=66
The css file in this plugin replaces the default css file. At the time, this seemed like an appropriate way of allowing users to share different gallery layouts, but maybe we need something more simple.
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