newsupernova/app/code/Magefan/Blog/view/frontend/templates/amp/widget/recent.phtml

<?php
/**
 * Copyright © 2016 Ihor Vansach (ihor@magefan.com). All rights reserved.
 * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
 *
 * Glory to Ukraine! Glory to the heroes!
 */
?>
<?php
/**
 * Blog recent posts widget
 *
 * @var $block \Magefan\Blog\Block\Widget\Recent
 */
?>

<?php
    $_postCollection = $block->getPostCollection();
    $imageHelper = $this->helper('Magefan\Blog\Helper\Image');
    $imageWidth = 500;
    $imageHeight = 300;
?>
<?php if ($_postCollection->count()) { ?>
<div class="post-list-wrapper blog-widget-recent">
    <h3 class="title"><?php echo $block->escapeHtml($block->getTitle()) ?></h3>
    <amp-carousel
             width="500"
             height="400"
             layout="responsive"
             type="slides"
             autoplay
             delay="5000"
             >
        <?php foreach ($_postCollection as $_post) { ?>
            <?php
                $_postUrl = $_post->getPostUrl();
                $_postName = $block->escapeHtml($_post->getTitle(), null, true);
            ?>
            <div class="post-holder post-holder-<?php echo $_post->getId() ?>">
                <div class="post-content">
                    <div class="post-description clearfix">
                        <?php if ($featuredImage = $_post->getFeaturedImage()) { ?>
                        <div class="post-ftimg-hld">
                            <a href="<?php echo $_postUrl ?>" title="<?php echo $_postName ?>">
                                <amp-img layout="responsive" width="<?php echo $imageWidth ?>" height="<?php echo $imageHeight ?>" src="<?php echo $this->helper('Magefan\Blog\Helper\Image')->init($_post->getFeaturedImg())->resize($imageWidth, $imageHeight) ?>" alt="<?php echo $_postName ?>"></amp-img>
                            </a>
                        </div>
                        <?php } ?>
                    </div>
                </div>
                <div class="post-header">
                    <div class="post-title-holder clearfix">
                        <div class="post-title">
                            <a class="post-item-link"
                               href="<?php echo $_postUrl ?>">
                                <?php echo $_postName; ?>
                            </a>
                        </div>
                    </div>
                </div>
            </div>

        <?php } ?>
    </amp-carousel>
</div>
<?php } ?>