 of which card is in front and which toggle button is visible -->
    <input type="radio" name="sushi-lunch" id="happy-radio">
    <input type="radio" name="sushi-lunch" id="lovers-radio" checked>

    <div class="selector">
      <label for="happy-radio" class="happy-card">
        <h1>Happy Sushi Lunch</h1>
        <ul>
          <li>California Roll</li>
          <li>2 Pieces Salmon Nigiri</li>
          <li>Sea Salt Edamame</li>
          <li>Miso Soup</li>
        </ul>
        <p>$12</p>
      </label