1. CSS ID đặt tên thân thiện hơn
Recent blog posts
Old CSS ID (Drupal 6): block-blog-0
New CSS ID (Drupal 7): block-blog-recent
Book navigation
Old CSS ID (Drupal 6): block-book-0
New CSS ID (Drupal 7): block-book-navigation
Recent comments
Old CSS ID (Drupal 6): block-comment-0
New CSS ID (Drupal 7): block-comment-recent
Active forum topics
Old CSS ID (Drupal 6): block-forum-0
New CSS ID (Drupal 7): block-forum-active
New forum topics
Old CSS ID (Drupal 6): block-forum-1