"xmlns:og" => "http://opengraphprotocol.org/schema/", :class => ("no-background" if params[:minimal_layout]) } /[if lt IE 7] %html.lt-ie10.lt-ie9.lt-ie8.lt-ie7{ @html_options } /[if IE 7] %html.lt-ie10.lt-ie9.lt-ie8{ @html_options } /[if IE 8] %html.lt-ie10.lt-ie9{ @html_options } /[if IE 9] %html.lt-ie10{ @html_options } :plain <!--[if gt IE 9] --> %html{ @html_options } = block