<div>
  <p>
    <img id="myimage" src="https://unsplash.it/400/300/?image=110" />
  </p>
  <p>
    <button onclick="document.getElementById('myimage').style.display='none'">Nascondi</button>
    <button onclick="document.getElementById('myimage').style.display='inline'">Mostra</button>
  </p>
</div>

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External JavaScript

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