10 duplicated lines in:
  - experiments/animate_folding.html (1:28)
  - build_support/editor.html (1:10)
  - demo/requirejs+build.html (1:10)
  - demo/settings_menu.html (1:10)
  - demo/keyboard_shortcuts.html (1:10)

7 duplicated lines in:
  - demo/autoresize.html (1:7)
  - experiments/animate_folding.html (1:25)
  - demo/settings_menu.html (1:7)
  - demo/scrollable-page.html (1:7)
  - demo/keyboard_shortcuts.html (1:7)
  - demo/requirejs+build.html (1:7)
  - demo/toolbar.html (1:7)
  - demo/shadow-dom.html (1:7)
  - build_support/editor.html (1:7)
  - demo/transform.html (1:7)