If you’ve ever built an email system, you know that generating HTML that email readers like is an ugly affair. The designer would be mostly useless for that.
That aside, the problem you describe isn’t a styling issue at all.
HTML forms have a rather archaic data structure that must to processed into something useful if you’re wanting a specific output. You need a business logic layer for that, or a specialized designer.
Some options-
-
Use an automation system like Make, Zapier, n8n, Pipedream to process your form data the way you want, and then send it through a solution like Mailjet, which gives you the presentation layer.
-
Use a dedicated form handler like Basin, which has more styling options ( maybe data formatting ones too ).
-
Use a custom form package like Jotforms.
-
Skip email altogether, push your form data somewhere useful like a leads management system. We do this often with Pipedrive, Nutshell, Notion, and Slack.