<fieldset>
  <legend>Select a maintenance drone:</legend>

  <div>
    <input type="radio" id="huey" name="drone" value="huey" checked />
    <label for="huey">Huey</label>
  </div>

  <div>
    <input type="radio" id="dewey" name="drone" value="dewey" />
    <label for="dewey">Dewey</label>
  </div>

  <div>
    <input type="radio" id="louie" name="drone" value="louie" />
    <label for="louie">Louie</label>
  </div>
</fieldset>

p,
label {
  font:
    1rem 'Fira Sans',
    sans-serif;
}

input {
  margin: 0.4rem;
}