Edit summary on mobile

Site URL: https://www.alicedegaetani.com/libri-minimalismo-intenzionalita

Good morning!

I'd love to know how to force the summary to show two columns on mobile rather that just one.

https://www.alicedegaetani.com/libri-minimalismo-intenzionalita

Thank you!

Add to Page Settings > Advanced > Header

<style>
  @media screen and (max-width:640px) {
  .summary-item-list {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    grid-column-gap: 10px;
}
    .summary-item-list img {
    width: 100% !important;
    height: auto !important;
    top: 0 !important;
    left: 0 !important;
}
  }
</style>