\!h add quantity add qty
<?php if ($_product->getTypeID() == 'simple'): ?>
<div class="field qty">
<label class="label" for="qty"><span><?= /* @escapeNotVerified */ __('Qty') ?></span></label>
<div class="control">
<input type="number"
name="qty"
id="qty"
value="1"
title="<?= /* @escapeNotVerified */ __('Qty') ?>"
class="input-text qty"
/>
</div>
</div>
<?php endif; ?>