Navigate to one of the Blog detail pages by clicking on the Post title from the main blog page or simply entering /blog/post-one in the browser:

We are in luck when it comes to our sidebar elements, as they are already positioned and themed the way they appear in the mockup. However, upon closer review we can see that we are missing some elements on our Blog detail page, or they are not themed the we may have expected. These issues may include:

The challenge for us is to think how Drupal outputs each of these sections and address them individually as we build our Twig templates. Since we have Twig debugging enabled, we can determine that we should start with creating a new node--post--full.html.twig template.