gistfile1.html

<div id="sample1-dialog" style="display: none">
    <h1>Simple alert</h1>
    <p>
        It is always beneficial to acknowledge alerts of any kind.
        You can close this alert if you agree. 
        (Note: Normaly a dialog box is not that penetrating)
    </p>
    <div class="actions">
        <button class="primary close-dialog">Understood</button>
        <button class="danger" onclick="alert('You might reconsider your click behaviour!')">I don't care</button>
    </div>
</div>