I’ve been having the error while forking the the CodePen pen of the Survey Form.
This is the part of the code that corresponds with that:
<div class='form-group'>
<p>Name</p>
<label for='name' id='name-label'>
<input type='text' name='name' id='name' class='form-control' placeholder='Tell me your name' required>
</label>
</div>
<div class='form-group'>
<p>E-mail</p>
<label for='email' id='email-label'>
<input type='email' name='email' id='email' class='form-control' placeholder='Tell me your e-mail' minlength='8' maxlength='60' required>
</label>
</div>
<div class='form-group'>
<p>Age</p>
<label for='age' id='number-label'>
<input type='number' name='age' id='number' class='form-control' placeholder='Tell me your Age' min='9' max='120' required>
</label>
</div>