&lt;p>
      &lt;label>
        &lt;input name="group1" type="radio" checked />
        &lt;span>Red&lt;/span>
      &lt;/label>
    &lt;/p>
    &lt;p>
      &lt;label>
        &lt;input name="group1" type="radio" />
        &lt;span>Yellow&lt;/span>
      &lt;/label>
    &lt;/p>
    &lt;p>
      &lt;label>
        &lt;input class="with-gap" name="group1" type="radio"  />
        &lt;span>Green&lt;/span>
      &lt;/label>
    &lt;/p>
    &lt;p>
      &lt;label>
        &lt;input name="group1" type="radio" d