Below you will find notes on inserting the HTML code directly into an HTML template, in common CM systems and notes on known problems.
HTML-Template
Simply insert the banner HTML code into your HTML code.
<html>
<head>
<title> Titel </title>
</head>
<body>
Seiteninhalt
copied HTML code
Seiteninhalt
</body>
</html>
Drupal
Go to "add content" at "https://[your domain]/node/add" and create a "page" or your preferred content type. Insert the content into the "Body"-field. Please note that you have the possibility to insert "Full HTML", otherwise the HTML code will be filtered. You can find this setting in the configuration under text formats "https://[your domain]/admin/config/content/formats".
Joomla!
Under Modules, create your own HTML content and insert the copied HTML code there. You can then include this content on the pages as usual.
Typo3
WordPress
iframe height adjustments
Border around the banner
Testing
The HTML code has been tested in Internet Explorer 9 and 10, Firefox, Safari (Mac and PC), Chrome, Opera and various Linux browsers.