When I upload an image in WP, and then in insert that image in a post as a thumbnail for example with a link to the original, when a user clicks on the thumbnail link, they are taken to a page with no styling but just the original image. What page is this? How can I create a page with styling like a header and a footer and center the orignial image with a link back to the post? I am not using any image plugins at the moment. Thanks!