repeater.html

<form action="echo.php" class="repeater" enctype="multipart/form-data">
  <div data-repeater-list="group-a">
    <div data-repeater-item>
      <input name="untyped-input" value="A"/>

      <input type="text" name="text-input" value="A"/>

      <input type="date" name="date-input" value="2018-05-01"/>

      <input type="url" name="url-input" value="https://exemple.com/a"/>

      <input type="color" name="color-input" value="#aaaaaa"/>

      <input type="datetime-local" name="datetime-local-input" value="2018-05-12T19:30"/>

      <input type="month" name="month-input" value="2018-05"/>

      <input type="number" name="number-input" value="42"/>

      <input type="search" name="search-input" value="A"/>

      <input type="tel" name="tel-input" value="1112223333"/>

      <input type="time" name="time-input" value="13:30"/>

      <input type="week" name="week-input" value="2018-W26"/>

      <textarea name="textarea-input">A</textarea>

      <input type="radio" name="radio-input" value="A" checked/>
      <input type="radio" name="radio-input" value="B"/>

      <input type="checkbox" name="checkbox-input" value="A" checked/>
      <input type="checkbox" name="checkbox-input" value="B"/>

      <select name="select-input">
        <option value="A" selected>A</option>
        <option value="B">B</option>
      </select>

      <select name="multiple-select-input" multiple>
        <option value="A" selected>A</option>
        <option value="B" selected>B</option>
      </select>

      <input data-repeater-delete type="button" value="Delete"/>
    </div>
    <div data-repeater-item>
      <input name="untyped-input" value="A"/>

      <input type="text" name="text-input" value="B"/>

      <input type="date" name="date-input" value="2019-05-01"/>

      <input type="url" name="url-input" value="https://exemple.com/b"/>

      <input type="color" name="color-input" value="#bbbbbb"/>

      <input type="datetime-local" name="datetime-local-input" value="2019-05-12T19:30"/>

      <input type="month" name="month-input" value="2019-05"/>

      <input type="number" name="number-input" value="43"/>

      <input type="search" name="search-input" value="B"/>

      <input type="tel" name="tel-input" value="4442223333"/>

      <input type="time" name="time-input" value="14:30"/>

      <input type="week" name="week-input" value="2019-W26"/>

      <textarea name="textarea-input">B</textarea>

      <input type="radio" name="radio-input" value="A" />
      <input type="radio" name="radio-input" value="B" checked/>

      <input type="checkbox" name="checkbox-input" value="A"/>
      <input type="checkbox" name="checkbox-input" value="B" checked/>

      <select name="select-input">
        <option value="A">A</option>
        <option value="B" selected>B</option>
      </select>

      <select name="multiple-select-input" multiple>
        <option value="A" selected>A</option>
        <option value="B" selected>B</option>
      </select>

      <input data-repeater-delete type="button" value="Delete"/>
    </div>
  </div>
  <input data-repeater-create type="button" value="Add"/>
</form>