newsupernova/vendor/magento/module-tax/view/adminhtml/templates/rate/form.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

// @codingStandardsIgnoreFile

?>
<div class="entry-edit form-inline">
    <?= $block->getFormHtml() ?>
</div>
<?= $block->getChildHtml('form_after') ?>