ss/plugins/image_manager.css">
  <link rel="stylesheet" href="../../css/plugins/image.css">
  <link rel="stylesheet" href="../../css/plugins/table.css">
  <link rel="stylesheet" href="../../css/plugins/video.css">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.3.0/codemirror.min.css">


  <style>
    body {
      text-align: center;
    }

    div#editor {
      width: 81%;
      margin: auto;
      text-align: left;
    }

    pre#preview {
      padding: 10px;
      bac