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CSS-Only Expanding FAQ Accordion Section

A responsive FAQ accordion section built with HTML and CSS only, featuring smooth expanding answers without any JavaScript.

This Example is contributed by Alexandra Sinclair, on 01-Mar-2025. It is responsive. similar terms for this example are Frequently asked questions, QnA,collapsible

FAQ Accordion

Author Alexandra Sinclair

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<div class="faq-container">
  <h2 class="faq-heading">Frequently Asked Questions</h2>
  
  <div class="faq-item">
    <input type="checkbox" id="faq-1" class="faq-toggle">
    <label for="faq-1" class="faq-question">How does this FAQ work without JavaScript?</label>
    <div class="faq-answer">
      <p>This FAQ section uses the CSS "checkbox hack" technique. When you click on a question, it toggles a hidden checkbox. CSS then uses the :checked pseudo-class to show or hide the answer based on the checkbox state.</p>
    </div>
  </div>
  
  <div class="faq-item">
    <input type="checkbox" id="faq-2" class="faq-toggle">
    <label for="faq-2" class="faq-question">Is this solution accessible?</label>
    <div class="faq-answer">
      <p>While this solution works without JavaScript, it has some accessibility limitations. Screen readers may not announce the expanded/collapsed state. For production sites, consider using ARIA attributes with JavaScript for better accessibility.</p>
    </div>
  </div>
  
  <div class="faq-item">
    <input type="checkbox" id="faq-3" class="faq-toggle">
    <label for="faq-3" class="faq-question">Can I customize the appearance?</label>
    <div class="faq-answer">
      <p>Absolutely! You can modify the CSS to change colors, spacing, fonts, and animations. The structure is simple and flexible, making it easy to match your site's design system.</p>
    </div>
  </div>
  
  <div class="faq-item">
    <input type="checkbox" id="faq-4" class="faq-toggle">
    <label for="faq-4" class="faq-question">Will this work in all browsers?</label>
    <div class="faq-answer">
      <p>This CSS-only approach works in all modern browsers. The checkbox hack is widely supported, making this a reliable solution across different platforms and devices.</p>
    </div>
  </div>
  
  <div class="faq-item">
    <input type="checkbox" id="faq-5" class="faq-toggle">
    <label for="faq-5" class="faq-question">How can I add more questions?</label>
    <div class="faq-answer">
      <p>To add more questions, simply copy one of the existing FAQ items and update the ID, label's for attribute, and content. Make sure each question has a unique ID to ensure proper functionality.</p>
    </div>
  </div>
</div>

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