HTML field

This is an HTML editor field:

PRO TIP: when you are editing an HTML tag, press CTRL+SPACE to show the list of available attributes

Allow dangerous content

If you need to inject your own JS code, go to the advanced options panel, and then enable the option to allow dangerous content.

PHP syntax

After enabling dangerous content, you can write PHP code.

Click on the Evaluate code button to run the evaluation tool. If any error is triggered, the code will not be displayed.