Hi!
I added this to a custom section (section where I have added all my custom changes) of my current template (template.css in the folder templates/purity II/css/). But probably it would work if defined somewhere (anywhere) else too (if it won't be overwritten later...).
If you have a CSS-file where you have already added custom modifications, just add this there also. Changing event booking core-files is probably not clever, because they get cleared after event booking update. Especially if this is more a problem of our templates than event booking itself...
Greetings,
shuotila
