Use HTML Editor & Advanced HTML

You can use HTML in 3 different ways when designing a specific Application type or Email Template.

1. Editor

Click the View button from the Editor menu
Click Source code
Enter HTML code in the Source code window

Note: HTML editor takes only the content in <body></body> tags. The styles can be assigned via inline CSS or attached external files.

2. Advanced HTML: this option allows you to create HTML code with internal CSS. Unlike HTML Editor, Advanced HTML allows you to see the entire HTML code.

Click Advanced HTML as the Editor Type
Enter HTML

3. Upload File: The Upload File button on the Basics tab of the Create Application page allows you to upload external CSS and JS files to use with the HTML code.