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<html>
<head>
<script src="jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").hide();
});
});
</script>
</head>
<body>
<h1>Welcome to My Homepage</h1>
<p>My name is Donald.</p>
<p class="intro">I live in Duckburg.</p>
<p class="intro">I love Duckburg.</p>
<p>My best friend is Mickey.</p>
<button>Click me</button>
</body>
</html>