Add canvas div that can have its background color changed to ensure...

a more tab-like look
Change font family to Helvetica
Remove the box class
Change topbar background color
Fix resize function
Add shadows and make height auto
Add shadows

Add missing that = this

Add placeholder author in comments
Added 2 pixels extra margin
Comments are now enclosed in boxes

Add top shadow for comments
Fix columnwidth to ensure even spacing of images
Add box sizing border box to all

Add additional wrapper to ensure border around images
Add shadows to images

Add a small border to tabs when expanded