Tryit Editor v1.8

Source Code:

<html>
<head>
<style>
#myHeader
{
color:red;
text-align:center;
}
</style>
</head>
<body>

<h1 id="myHeader">W3Schools is the best!</h1>

</body>
</html>

Result:

W3Schools.com - Try it yourself

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