Untitled

<html>
  <head>
    <title>Bookmark my Wiki</title>
    <script>
      window.onload=function(){document.getElementById('c').contentEditable='true';}
    </script>
    <style>
      #c{padding:.5em}
    </style>
  </head>
  <body>
    <a
      href="javascript:window.location='data:text/html;base64,'+btoa(document.documentElement.outerHTML)"
      >encode</a
    >
    <div id="c" contenteditable="true">
      <h1>This is editable.</h1>
      <div>Stuff goes here.</div>
    </div>
  </body>
</html>