<body>
<h1>What Can JavaScript Do?</h1>
<p id="content">JavaScript can change HTML content.</p>
<button type="button" onclick="document.getElementById('content').innerHTML = 'Hello JavaScript!'">Click Me!</button>
<hr>
<p id="size">JavaScript can change the style of an HTML element.</p>
<button type="button" onclick="document.getElementById('size').style.fontSize='35px'">Click Me!</button>
</body>
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