message: Remove margin from iframe body
diff: @@ -21,7 +21,16 @@ function importLightweightChartsVersion(version) {
  function getSrcDocWithScript(script, parentOrigin) {
  return `
  - <style>html, body, #container { width: 100%; height: 100%; overflow: hidden; }</style>
  + <style>
  + html,
  + body,
  + #container {
  + width: 100%;
  + height: 100%;
  + overflow: hidden;
  + margin: 0;
  + }
  + </style>
  <div id="container"></div>
  <script>
  window.run = () => {
  