<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
body {
text-align: center;
}
h1 {
color: #000000;
}
p span {
display: block;
}
</style>
</head>
<body>
<h1>
W3Docs
</h1>
<p>
<span>Example_1</span>
<span>Example_2</span>
</p>
</body>
</html>