row-reverse

<div class="row members_row">
            <div class="col-lg-6 title_content_dienn text-right">
                <h1 id="titledien"><?php the_title();?></h1>
                <p><?php the_field('content');?></p>
                <a href="<?php the_permalink();?>" class="seemore hvr-grow-rotate">See more</a>
            </div>

            <div class="col-lg-6 image_dienn">
                <?php $gallery = get_post_gallery_images();?>

                <div class="single-item">
                    <?php
                        for($i=0;$i<count($gallery);$i++):?>

                    <img src="<?php print_r($gallery[$i]);?>" alt="">

                    <?php endfor;?>
                </div>
            </div>
        </div>