All Telerik .NET tools and Kendo UI JavaScript components in one package. Now enhanced with:
Hi, Christopher.
The radio list uses flex box for laying out its items. As such, you simply need to customize the vertical spacing (or row spacing).
.k-radio-list.k-list-horizontal { row-gap: 4px; }
Putting everything together: https://dojo.telerik.com/@joneff/AGiZOjOL
Regards, Ivan Zhekov Progress Telerik