changed mobile background to make it stand out more, so people know its a menu and not just part of the website page
changed css style for block quote, made font smaller and italic as this content is not the core information in an article
added 3 styles for images.  Thumbnails are used at the start of a blog to visualise the category or main tag.  Topic image style is used to highlight different topics within an article.  Code image style displays the image across the width of the article area and has no text wrapping.