<form method="post"
action="https://app.flocknote.com/group/239148/addToGroupFromOutside" target="_blank">
<input type="text" name="fname" placeholder="First Name" />
<input type="text" name="lname" placeholder="Last Name" />
<input type="email" name="email" placeholder="Email Address" />
<input type="tel" name="mobile_phone" placeholder="Mobile Phone" />
<button type="submit" value="submit">Sign Me Up</button>
</form>