Hi @Gustavo_Dias - Our Send Email step was not built to support CSS styling (just plain text emails), so I’m not sure if this will be possible. I know that there isn’t a way to escape the curly brackets.
You can try using a CSS Inliner tool like this one I found on Google: https://templates.mailchimp.com/resources/inline-css/
You can try using the inline version in your email body, but I’m not sure what will happen to the data you’re trying to merge in. Definitely recommend doing some tests to make sure this works.
Ultimately, if you’re needing a solution with more CSS styling options, we recommend using a formal email platform like Mailchimp or Sendgrid. We have a Sendgrid Export step or you can use our generic API Export step to send data to Mailchimp.