<div class="custom-select">
    <select class="bg-rose-600 text-white text-xl">
        <option selected disabled>Choose a book format</option>
        <option value="pdf">PDF</option>
        <option value="txt">txt</option>
        <option value="epub">ePub</option>
        <option value="fb2">fb2</option>
        <option value="mobi">mobi</option>
    </select>
</div>