message: Use a div rather than a span to wrap the video iframe.
diff: @@ -3,7 +3,7 @@ import visit from "unist-util-visit";
  const youtubeEmbedRegex = new RegExp(`\(youtube\):\(\.\*\)`, "i");
  const embedVideoHtml = (videoId, options) => `
  -<span class="video-container"><iframe
  +<div class="video-container"><iframe
  title=""
  width="${options.width}"
  height="${options.height}"
  @@ -12,7 +12,7 @@ const embedVideoHtml = (videoId, options) => `
  ${options.noIframeBorder ? 'style="border:0"' : ""}
  allowfullscreen
  sandbox="allow-same-origin allow-scripts allow-popups">
  -</iframe></span>`;
  +</iframe></div>`;
  const visitor = (options) => (node) => {
  if (node.type === "inlineCode") {
  