Sep 26, 2019 07:34 PM|mgebhard|LINK
IMHO, it does not make sense to use a radio button in this way. You should set a default value or add another radio with a "none" label similar to a select element. See the spec; https://html.spec.whatwg.org/multipage/input.html#attr-input-required
Also, the radio buttons are missing the name attribute. The name attribute is used to group radio buttons. Plus this is a problem if the form is submitted.