Editing HTML content block (section)

== Configuration Options and Settings ==

When working with the HTML content block, there are several important settings and options to be aware of. Keep the following guidelines in mind:

* Avoid using the following tags in your HTML code: '''<!doctype>''', '''<html>''', '''<head>''', and '''<body>'''. The email designer will automatically generate these tags when the email is sent, so including them can cause rendering issues.
* '''Media queries''' are not supported in the HTML content block. If you wish to use responsive design techniques, consider using the modern email designer introduced in 2022.
* Javascript is not supported. Code that requires Javascript to function will not work in your emails, so avoid using it.
* Custom fonts cannot be utilized in this feature. For custom typography, you will need to switch to the 2022 email designer.
* Avoid using video autoplay in video embed scripts, as many email clients silence such functionalities, which can lead to a poorer user experience. Instead, use a screenshot of the video linked to your video source.
* Iframe tags are unsupported. Email clients often do not render iframe contents properly, so refrain from using them within your HTML code.
* Social media widgets and embed scripts are not permitted. For social media content, consider leveraging an RSS feed instead.