Test Document Title style { display: none; } body, paragraph, line { display: block; } word, altword, char, altchar, snippet { display: inline; } body { font-family: Arial,sans-serif; } altword, altchar { font-style: italic; color: grey; } [class~="red"] { background-color: red; } [class~="blue"] { color: blue; } [class~="large"] { font-size: 150%; } abcd Here is some region level hidden text. efgh Here is some paragraph level hidden text. ijkl mnop Word c o h n k Vordok Wordoh Next Some line level hidden text. And some line level hidden text.