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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>before multiple args demo</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 520px; }
    p { background: #fef08a; padding: 8px 10px; border-radius: 4px; }
    .note { background: #dcfce7; padding: 8px; margin: 4px 0; border-radius: 4px; }
    #foo { background: #e0e7ff; padding: 8px; margin: 8px 0; border-radius: 4px; }
    button { margin-top: 12px; padding: 10px 16px; background: #ea580c; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
    #hint { color: #64748b; font-size: 14px; margin-top: 10px; }
  </style>
</head>
<body>
  <div id="foo">Existing #foo block (will move)</div>
  <p>First paragraph — nodes insert before this.</p>
  <p>Second paragraph (unchanged).</p>
  <button type="button">Multiple .before() args</button>
  <p id="hint">Three nodes insert before first p: jQuery div, createElement div, and #foo.</p>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("button").on("click", function() {
      var $newdiv1 = $("<div class='note'>Note from jQuery</div>"),
          newdiv2 = document.createElement("div");
      newdiv2.className = "note";
      newdiv2.textContent = "Created with createElement";
      var existingdiv1 = document.getElementById("foo");
      $("p").first().before($newdiv1, [newdiv2, existingdiv1]);
      $("#hint").text("Three siblings inserted before first paragraph in order.");
    });
  </script>
</body>
</html>

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jQuery .before() — multiple arguments (Try It)