Please try and avoid using heading tags for size alone :) If it's for design purposes, just resize some <span>'s, and let headings (even ones hidden off the sid

Please try and avoid using heading tags for size alone :) If it's for design purposes, just resize some <span>'s, and let headings (even ones hidden off the side of the screen) define the structure of the document (as we explain in the error description). The reason for this is because many screen-readers have keyboard shortcuts to jump from heading to heading. Many users will map out the page with this key-binding. Keeping the headings in a good order is very important.