footer: Increasing font size to 12 and justifying in response to changes in the main section
Upping font size for #main li to reflect change to #main p
Main content width: I agree that previously, the main content was to wide (700px). But rather than making it more narrower for blog posts only (.post), it should be done system wide (#main). For this reason I'm deleting the width property in -post, and decrease width in #main to 580. This is more or less the same width as blog post previously had, and I have made sure that /forum/ still looks OK.
Making sure that post layout has the <article> tag, so that it make use of the same layout as blog index