newsupernova/vendor/magento/module-backend/view/adminhtml/templates/widget/tabs.phtml

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

// @codingStandardsIgnoreFile

/** @var $block \Magento\Backend\Block\Widget\Tabs */
?>
<?php if (!empty($tabs)): ?>

<div class="admin__page-nav" data-role="container" id="<?= /* @escapeNotVerified */ $block->getId() ?>">
    <?php if ($block->getTitle()): ?>
        <div class="admin__page-nav-title" data-role="title" <?= /* @escapeNotVerified */ $block->getUiId('title') ?>>
            <strong><?= /* @escapeNotVerified */ $block->getTitle() ?></strong>
            <span data-role="title-messages" class="admin__page-nav-title-messages"></span>
        </div>
    <?php endif ?>
    <ul <?= /* @escapeNotVerified */ $block->getUiId('tab', $block->getId()) ?> class="<?= /* @escapeNotVerified */ $block->getIsHoriz() ? 'tabs-horiz' : 'tabs admin__page-nav-items' ?>">
        <?php foreach ($tabs as $_tab): ?>

            <?php if (!$block->canShowTab($_tab)): continue;  endif; ?>
            <?php $_tabClass = 'tab-item-link ' . $block->getTabClass($_tab) . ' ' . (preg_match('/\s?ajax\s?/', $_tab->getClass()) ? 'notloaded' : '') ?>
            <?php $_tabType = (!preg_match('/\s?ajax\s?/', $_tabClass) && $block->getTabUrl($_tab) != '#') ? 'link' : '' ?>
            <?php $_tabHref = $block->getTabUrl($_tab) == '#' ? '#' . $block->getTabId($_tab) . '_content' : $block->getTabUrl($_tab) ?>

            <li class="admin__page-nav-item" <?php if ($block->getTabIsHidden($_tab)): ?> style="display:none"<?php endif; ?><?= /* @escapeNotVerified */ $block->getUiId('tab', 'item', $_tab->getId()) ?>>
                <a href="<?= /* @escapeNotVerified */ $_tabHref ?>" id="<?= /* @escapeNotVerified */ $block->getTabId($_tab) ?>" name="<?= /* @escapeNotVerified */ $block->getTabId($_tab, false) ?>" title="<?= /* @escapeNotVerified */ $block->getTabTitle($_tab) ?>"
                   class="admin__page-nav-link <?= /* @escapeNotVerified */ $_tabClass ?>"
                   data-tab-type="<?= /* @escapeNotVerified */ $_tabType ?>"
                   <?= /* @escapeNotVerified */ $block->getUiId('tab', 'link', $_tab->getId()) ?>>

                   <span><?= /* @escapeNotVerified */ $block->getTabLabel($_tab) ?></span>

                   <span class="admin__page-nav-item-messages" data-role="item-messages">
                       <span class="admin__page-nav-item-message _changed">
                           <span class="admin__page-nav-item-message-icon"></span>
                           <span class="admin__page-nav-item-message-tooltip">
                               <?= /* @escapeNotVerified */ __('Changes have been made to this section that have not been saved.') ?>
                           </span>
                       </span>
                       <span class="admin__page-nav-item-message _error">
                           <span class="admin__page-nav-item-message-icon"></span>
                           <span class="admin__page-nav-item-message-tooltip">
                               <?= /* @escapeNotVerified */ __('This tab contains invalid data. Please resolve this before saving.') ?>
                           </span>
                       </span>
                        <span class="admin__page-nav-item-message-loader">
                           <span class="spinner">
                               <span></span><span></span><span></span><span></span>
                               <span></span><span></span><span></span><span></span>
                           </span>
                       </span>
                   </span>
                </a>
                <div id="<?= /* @escapeNotVerified */ $block->getTabId($_tab) ?>_content" style="display:none;"<?= /* @escapeNotVerified */ $block->getUiId('tab', 'content', $_tab->getId()) ?>><?= /* @escapeNotVerified */ $block->getTabContent($_tab) ?></div>
            </li>
        <?php endforeach; ?>
    </ul>
</div>

<script>
require(['jquery',"mage/backend/tabs"], function($){
    $(function() {
        $('#<?= /* @escapeNotVerified */ $block->getId() ?>').tabs({
            active: '<?= /* @escapeNotVerified */ $block->getActiveTabId() ?>',
            destination: '#<?= /* @escapeNotVerified */ $block->getDestElementId() ?>',
            shadowTabs: <?= /* @escapeNotVerified */ $block->getAllShadowTabs() ?>,
            tabsBlockPrefix: '<?= /* @escapeNotVerified */ $block->getId() ?>_',
            tabIdArgument: 'active_tab'
        });
    });
});
</script>
<?php endif; ?>