Can I put a border around my gallery images?

Site URL: https://lonsdalestudio.com/ciara-antony

Hi can anyone tell me how to add a border to the images in my stack gallery?

Thanks!

add to page header

<style>
  .sqs-block-gallery img {
    border: 10px solid green;
}
</style>

Ok I got that to work! Helped when I put the code in the correct section haha.

Now I've got a new problem, with the border, the gallery is not centred on the page correctly?

Any idea how to fix this?

Help?!

in the gallery settings uncheck "crop images"