Where this goes
Save as _includes/contact.html and insert {% include contact.html %} into your page.
Create a form in the dashboard and replace YOUR_FORM_ID with your endpoint ID. No account key belongs in this code.
<form action="https://formdrop.wouldairecommend.workers.dev/f/YOUR_FORM_ID" method="POST">
<label for="email">Email</label>
<input id="email" type="email" name="email" required>
<label for="message">Message</label>
<textarea id="message" name="message" required></textarea>
<input name="_gotcha" tabindex="-1" autocomplete="off" hidden>
<button type="submit">Send message</button>
</form>The detail that matters
The form should be raw HTML. Do not wrap it in a Markdown code fence on the live page.
After you publish
Send a test from the published page, then check Inbox and Spam. Native forms follow a redirect; fetch clients must request JSON and show errors. Set your allowed domains to the hostnames you actually publish, including any preview hostname you need.
Read the endpoint reference for reserved fields, CORS and redirect rules. Start from the accessible contact template if you need styling.