Text on a line in a paragraph content box.
See how the lines are nicely spaced so characters do not collide. ™

Text on a line in a paragraph content box with superscript and subscript
See how the lines are spaced so characters do not collide with subscript.

Square of four: 4² = 16. Cube of four: 4³ = 64.

Square of four: 42 = 16. Cube of four: 43 = 64.

HTML 4.0 HTML 4.01

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Valid HTML 4.01 Strict Valid CSS Level 2.1