By adding the URL parameter (i.e. flag) chromeless:true
to any Open Publishing Space page you can display that page's content without the global header image, site navigation bar, sidebar and footer - a great way to seamlessly embed Open Publishing Space pages into other systems.
For example, the URL http://demo.hibbittsdesign.org/grav-open-publishing-quark/ displays the standard Open Publishing Space blog post list page but the URL http://demo.hibbittsdesign.org/grav-open-publishing-quark/chromeless:true will only display that page's content. Any links between Open Publishing Space pages will result in pages being displayed in the same manner.
Learn more about the capabilities of the Open Publishing Space project at learn.hibbittsdesign.org.
Want to no longer display this page on your site?
Delete the page 'Read Me' in your Admin Pages panel or set the page's 'Published' option under the 'Options' Tab to 'No'.