index.css

body {
  margin: 0;
}

#sidebar {
  border-right: 1px solid gray;
  vertical-align: top;
}

#container {
  width: 100%;
  display: table;
  }

#row {
  display: table-row;
}

#sidebar {
  width: 250px;
  height: 600px;
  display: table-cell;
  }

#browser {
  display: table-cell;
  width: 800px;
  height: 600px;
}

wrapper {
  width: 100%;
  height: 100%;
}

webview {
  autosize: on;
  min-width: 800px;
  min-height: 600px;
  background-color: blue;
  display: inline-block;
}

#admin, #task {
  padding: 10px;
}

#admin {
  border-top: 1px solid gray;
}

h1 {
  margin-top: 0;
  font-size: 6;
}