Bootstrap 3 image align center : You can make image align center in bootstrap 3 as below.
Bootstrap 3 image align center
You Can use in-built class center-block to image align center in a container.
<amp-img src="my-image.jpg" alt="Bootstrap 3 image align center Demo Image" class="img-responsive center-block amp-wp-unknown-size amp-wp-enforced-sizes" width="600" height="400" sizes="(min-width: 600px) 600px, 100vw"></amp-img> |