This theme is a responsive bootstrap based layout with one column. Inside the theme folder in the file page.tpl.php you can find the html structure of the page. The main content is divided into three regions, the first one with id "main_content" the second one with id "second_region" and the third one with id "third_region".

For the homepage the html structure has some aditional regions, namely Quotes (class "quote_region"),Tweets (class "tweets_region").