how to change size of images on my events page

Greetings.
I hope someone here can help me. I tried ChatGPT first without any luck.

We have an events page on our site with an image for each event (it is the logo of the organization who will be visiting us on a given date). The image is stretched and I can't seem to resize it. I'd like to make it about a quarter the size it is in the screenshot.

I'd be very grateful for any help I can get.

I tried adding the following custom CSS code to no avail:
 

.eventlist-column-thumbnail {
  width: 300px; /* Change the value to the desired width */
  height: 200px; /* Change the value to the desired height */
  display: flex;
  align-items: center;
  justify-content: center;
}

.eventlist-column-thumbnail img {
  object-fit: cover;
  object-position: center;
  width: 100%;
  height: 100%;
 

Here's an image of the page:

Can you share link to event page? We can check easier

thanks!

https://www.perumission.org/shortterm-missions-schedule

Thank you!!

is there a way to do this just for desktop version without changing the setting for phone view?

12 hours ago, sarahgcb said:

is there a way to do this just for desktop version without changing the setting for phone view?

Change the code to this

@media screen and (min-width:992px) {
.eventlist-column-thumbnail img {
    width: 100% !important;
    height: auto !important;
    left: 0 !important;
    top: 0 !important;
}
.tweak-events-stacked-thumbnail-size-11-square .eventlist-column-thumbnail {
    padding-bottom: 15% !important;
    width: 15% !important;
}
.eventlist-column-info {
    width: 85% !important;
}
}