I18N Gallery Not Centered On Page

[chaos]

My site has 5 pages, each featuring a small gallery. However, the galleries are not centered on the content page even though I centred the gallery tags.
I have also tried using (% gallery name=my-gallery-name js=false %) as I am using the I18N cycle slidshow on the same page.
This too does not help.
Any ideas?

Installed Plugins:
I18N Gallery
p01-contact
{under-construction/UNDER_TITLE} Plugin