Accessible contact form with semantic HTML5 validation and ARIA attributes.
<form id="contact-form" novalidate>
<div class="form-group">
<label for="name">Callsign / Name</label>
<input type="text" id="name"
required aria-required="true">
</div>
<div class="form-group">
<label for="email">Email</label>
<input type="email" id="email"
required aria-required="true">
</div>
<button type="submit" class="btn">
Transmit
</button>
</form>