html, body {
  padding: 0;
  margin: 0;
  background: #ddd;
  overflow: hidden;
  height: 100%;
}

#wrapper {
  height: 100%;
}

#left-block {
  float: left;
  width: 50%;
  height: 100%;
  padding: 0;
  margin: 0;
}
#right-block {
  background: #fff;
  float: right;
  width: calc(50% - 2px);
  height: 100%;
  padding: 0;
  overflow: auto;
}

#textile-edit {
  margin: 0;
  width: 100%;
  height: 100%;
}


#preview {
  font-size: 12px;
  padding: 0 16px;
}
#preview pre {
  border-radius: 4px;
  border: 1px solid #aaa;
  padding: 8px;
  background: #fcfcfc;
}
#preview td, #preview tr {
  border: 1px solid #aaa;
}