Embedded snippets numbering and scrolling is off

Description

When embedding a snippet into some HTML by dropping in the script tag, the numbering and scroll area of the snippet is off.

Demo	Screenshot of small snippet
20200225_embed_snippet_bug

Example HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Hello</title>
  </head>
  <body>
    <script src="https://gitlab.com/snippets/1853319.js"></script>
  </body>
</html>

Simply create a index.html file with this content and open in your local browser to see the bug.

Edited Feb 25, 2020 by Paul Slaughter