JSFiddle - React, Tailwind, and code Playground

HTML

<div>
   <label>
       <input type="radio" name="test" />
       <span>Radio number one</span>
    </label>
</div>
<div>
   <label>
       <input type="radio" name="test" checked="checked" />
       <span>Radio number two</span>
    </label>
</div>

CSS

label:active {
    font-weight: bold;
}