plain block

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <h1>hello world</h1>
  <p>content goes here</p>
</body>
​
    