How to set swiper height to 50vh on desktop and 100% on mobile?

Hello,
I’ve created a swiper
https://kalimeraholidays.com/vlastos-eng.html
and I can’t make it smaller.
I would like it to be max-height: 50vh on desktop and bigger resolutions.

It’s nested directly in a column.
I tried editing properties of column and swiper in app structure properties also I played with custom css but the solution still escapes me.

I would really appreciate help with that.
Thanks and all the best,
Ari