newsupernova/app/code/Magefan/Blog/view/frontend/templates/amp/post/view.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 post view template
 *
 * @var $block \Magefan\Blog\Block\Post\View
 */
?>
<?php
    $_post = $this->getPost();
    $_postUrl = $_post->getPostUrl();
    $_postName = $block->escapeHtml($_post->getTitle(), null, true);

    $imageHelper = $this->helper('Magefan\Blog\Helper\Image');
    $imageWidth = 500;
    $imageHeight = 200;
?>
<div class="post-view">
    <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">
                    <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>
                </div>
                <?php } ?>
                <div class="post-text-hld">
                    <?php echo $block->getContent() ?>
                    <div class="clear"></div>
                </div>
            </div>
        </div>

        <div class="post-bottom">
            <?php echo $this->getChildHtml('blog.post.bottom') ?>
        </div>
    </div>
</div>