cms/static/js/views/container.js

cms/static/js/views/modals/edit_xblock.js

cms/static/js/views/pages/container.js

cms/static/sass/elements/_xblocks.scss

cms/static/sass/views/_container.scss

cms/static/sass/views/_unit.scss

common/lib/xmodule/xmodule/split_test_module.py

common/lib/xmodule/xmodule/tests/test_split_test_module.py

common/lib/xmodule/xmodule/x_module.py

docs/en_us/developers/source/xblocks.rst

lms/templates/split_test_author_view.html