The view-source mark-up shows they aren’t 3 images, but the same image 3 times.
<p>
<img src="//cdn.discourse.org/meta//cdck-file-uploads-global.s3.dualstack.us-west-2.amazonaws.com/meta/original/3X/2/3/2302e458436b35f8493259805de0e2e91fd5038e.png" height="137" width="150">
<br>
<img src="//cdn.discourse.org/meta//cdck-file-uploads-global.s3.dualstack.us-west-2.amazonaws.com/meta/original/3X/2/3/2302e458436b35f8493259805de0e2e91fd5038e.png" height="137" width="150">
<br>
<img src="//cdn.discourse.org/meta//cdck-file-uploads-global.s3.dualstack.us-west-2.amazonaws.com/meta/original/3X/2/3/2302e458436b35f8493259805de0e2e91fd5038e.png" height="137" width="150">
</p>