Change summary block image ratio from anamorphic widescreen to 3:4 vertical on mobile

Can anyone help me change my summary block image ratio from anamorphic widescreen to 3:4 vertical on mobile? Thanks in advance! 🙂

https://thatgirl-demo.squarespace.com/ (password: demo)

38 minutes ago, Web_Solutions said:

Add these code on Custom CSS panel in Website > Utilities > Website Tools > Custom CSS.

@media only screen and (max-width: 767px) {
  #block-yui_3_17_2_1_1704417617379_1352 .summary-item .summary-thumbnail{
    padding-bottom: 133.333% !important;
  }
}

 

You're amazing! Thanks so much! 🙂

31 minutes ago, NicoleN said:

You're amazing! Thanks so much! 🙂

Welcome!