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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>wrap vs wrapInner</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 560px; }
    .panel { border: 1px solid #cbd5e1; padding: 12px; margin-bottom: 16px; border-radius: 8px; }
    h3 { margin: 0 0 8px; font-size: 14px; color: #475569; }
    .box { border: 2px solid #3b82f6; padding: 6px; margin: 4px 0; border-radius: 4px; }
    p { background: #fef08a; margin: 4px 0; padding: 6px 8px; border-radius: 4px; }
    button { margin: 4px 6px 4px 0; padding: 8px 14px; border: none; border-radius: 6px; cursor: pointer; color: #fff; background: #6366f1; }
    #hint { color: #64748b; font-size: 14px; margin-top: 10px; }
  </style>
</head>
<body>
  <div class="panel" id="demo-a">
    <h3>Panel A — .wrap() adds OUTER parent</h3>
    <p>A1</p>
    <button type="button" class="wrap-btn" data-target="#demo-a p">.wrap()</button>
  </div>
  <div class="panel" id="demo-b">
    <h3>Panel B — .wrapInner() wraps INSIDE</h3>
    <p>B1</p>
    <button type="button" class="inner-btn" data-target="#demo-b p">.wrapInner()</button>
  </div>
  <p id="hint">Inspect DOM: wrap = div &gt; p; wrapInner = p &gt; div &gt; text</p>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $(".wrap-btn").on("click", function() {
      $($(this).data("target")).wrap("<div class='box'></div>");
      $("#hint").text("Panel A: div wraps around the p element.");
    });
    $(".inner-btn").on("click", function() {
      $($(this).data("target")).wrapInner("<div class='box'></div>");
      $("#hint").text("Panel B: div wraps inside the p around its contents.");
    });
  </script>
</body>
</html>

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jQuery .wrap() vs .wrapInner() (Try It)