Your page looks good @lforsey. Some things to revisit;
Run your HTML code through the W3C validator.
There is an HTML syntax/coding error you should be aware of and address.
Since copy/paste from codepen you can ignore the first warning and first two errors.
Change the cursor to a pointer when hovering over the submit button
Do not use the <br> element to force line breaks or spacing. That’s what CSS is for.
Reference MDN Docs
Check that the user has entered a valid email addr. Throw an HTML5 validation error if not.
You learned to do this when coding the survey form
Looks good @lforsey, nice job cleaning things up. Although when running your HTML code through the W3C validator I still see the following error which you should address The frameborder attribute on the iframe element is obsolete. Use CSS instead.