No affixing for screen sizes that are less than 768px
Embed the post thumbnail with an link to the post
Add general info about the author in the footer of the page
Stop setting the height of the footer
Change the bottom offset of the left side affix
Return the post, or issue a 404 page not found error
Add a template for a 404 error
Add a route for handling 404 errors
Add a footer_right block on the right side of the base footer
Add the categories to the footer
Add a 'push' div at the end of the content and replace the stray footer closing with the correct div closing
Fix the sticky footer on the page