Tryit Editor v1.8

Source Code:

<!DOCTYPE html>
<html>
<head>
<style>
body
{
font-size:50px;
}
</style>
</head>
<body>

<h1>This is a header (headers are not affected by the font-size property)</h1>
<p>This is a paragraph.</p>

</body>
</html>

Result:

W3Schools.com - Try it yourself

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