Example:
<div style="background-color: #f8f9fa !important; border: 1px solid #eaecf0;border-radius: 2px; padding: 1px 4px;">
<span style="background-color: #f8f9fa; border: 1px solid #eaecf0;border-radius: 2px; padding: 1px 4px;"><nowiki><iFrame data-src="https://beds24.com/booking2.php?propid=12345&referer=iFrame" width="800" height="2000" style="max-width:100%;border:none;overflow:auto;"><p><a href="https://beds24.com/booking2.php?propid=12345&referer=iFrame" title="Book Now">Book Now</a></p></iFrame></nowiki></span>