Do you want to request a feature or report a bug?
Mostly a bug, IMHO
What is the current behavior?
<li> inside <RadioGroup row /> has margin-bottom that it shouldn't.
If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Paste the link to your JSFiddle (https://jsfiddle.net/Luktwrdm/) or CodeSandbox (https://codesandbox.io/s/new) example below:
What is the expected behavior?
<li> inside <RadioGroup row /> has margin-right because of the row prop, as it should, but the margin-bottom should be removed in that case.
Which versions of MDL, and which browser / OS are affected by this issue? Did this work in previous versions of MDL?