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<!DOCTYPE html>

<html lang=en>

<head>

  <meta charset=UTF-8>

  <meta name=viewport content="width=device-width,initial-scale=1">

  <title>value — radio example</title>

  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}fieldset{border:1px solid #e2e8f0;border-radius:8px;padding:.75rem 1rem;max-width:20rem}legend{font-weight:600;padding:0 .25rem}label{display:block;margin:.35rem 0}button{margin-top:.75rem;padding:.45rem .85rem;border:1px solid #cbd5e1;border-radius:6px;background:#fff;cursor:pointer;font:inherit}output{display:block;margin-top:.75rem;padding:.5rem .75rem;background:#f1f5f9;border-radius:6px;font-size:.875rem}.hint{font-size:.8125rem;color:#64748b;margin-top:.75rem}</style>

</head>

<body>

  <h1>Radio value attribute</h1>



  <fieldset>

    <legend>Size</legend>

    <label><input type=radio name=size value=s> Small</label>

    <label><input type=radio name=size value=m checked> Medium</label>

    <label><input type=radio name=size value=l> Large</label>

  </fieldset>



  <button type=button onclick=showSelected()>Show selected value</button>

  <output id=result>Selected: m</output>



  <script>function showSelected(){var e=document.querySelector('input[name="size"]:checked');document.getElementById("result").textContent="Selected: "+e.value}</script>



  <p class=hint>All radios share <code>name="size"</code> but each has a different <code>value</code> submitted when selected.</p>

</body>

</html>

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HTML value Attribute — radio buttons