<p data-height="1" data-theme-id="0" data-slug-hash="roBoxy" data-default-tab="js,result" data-user="garikrc" data-pen-title="alert" class="codepen">See the Pen <a href="https://codepen.io/garikrc/pen/roBoxy/">alert</a> by GarikRC (<a href="https://codepen.io/garikrc">@garikrc</a>) on <a href="https://codepen.io">CodePen</a>.</p>

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