У вашего броузера проблема в совместимости с HTML5
Full series: http://www.leveltendesign.com/tutorial/course/getting-started-drupal-7
This tutorial is a quick run through of how to add, edit and find content in Drupal. We discuss various node options by creating an article and basic page.
We conclude by reivewing Drupal's content list page enabling us to do bulk updates and link to nodes for review and editing.