How do I re-size a slideshow gallery?

Hi does anyone know how to re-size a slideshow gallery? It takes up too much of the screen and I want to make it smaller.If I use a carousel gallery if I click on an image I get an anchor point to resize the gallery but I can't seem to make the slideshow gallery do that.Help! The page in question and gallery is https://lonsdalestudio.com/city-romance

Thanks!

@milomilomilo Add to Home > Design > Custom CSS

@media screen and (min-width:901px) {
   body#collection-5bc850da9140b7397ee80e6f .sqs-gallery.sqs-gallery-design-stacked {
       max-height: 500px !important;
       overflow: hidden !important;
   }
   }

Thanks I'll give that a go!

Thanks, that worked but it's only applied that setting to 1 gallery. Is there a way to apply that setting to ALL slideshow galleries on my page?

@milomilomilo Remove body#collection-5bc850da9140b7397ee80e6f

Thank you thank you thank you!