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` or multiline blocks within triple backtick fences (```) with double new lines before and after. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. Instructor Notes: Add instructor notes here. Could very old employee stock options still be accessible and viable? Other than quotes and umlaut, does " mean anything special? Use the responsive iframe generator to quickly create a responsive iframe at any aspect ratio. Written rules are directly applied to elements of parent class i.e