<body>
<h1 class="test">Başlık Metni</h1>
</body>
<style>
body {font-size: 16px; }
h1 {font-size: 1.8em;}
</style>
<body>
<h1 class="test">Başlık Metni</h1>
</body>
<style>
body {font-size: 16px; }
h1 {font-size: 1.8em;}
</style>