Make pictures centre aligned

[bluMarmalade]

VM 3,0,16/joomla 3.6.2

After I installed a new template, my pictures on my products are aligned to the left. I want them to be in the centre.
This is probably easy for any css familiar person, but I just don't remeber how to do it.
this is the site: www.seriemesteren.no

[GJC Web Design]

.browseProductImage {
  margin: auto;
  max-width: 100%;
  width: auto;
}

[bluMarmalade]

Thanks. I got it working. I inserted it in the template custom code box for css.