<body>
  <div class="relative group bg-red-100">
    <div>
      Menu
    </div>
    <div class="absolute invisible group-hover:visible bg-green-100">
      <div>Item1</div>
      <div>Item2</div>
      <div>Item3</div>
    </div>
  </div>
</body>

.group:hover .group-hover\:visible {
  visibility: visible;
}
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External CSS

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External JavaScript

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