Day 30

 <sup> Representing a portion of text that should be displayed at a higher (and often smaller) level than the main level of text.

<time> Represents 24-hour time or exact date using the Gregorian calendar (optionally adding time or time zone information).

<u> The element is used <u>to display text with a horizontal line below the baseline of its content.

In HTML5, this element represents a piece of text that is indicated by applying a clear effect to it but that effect is not textual and is not specified, or to indicate that the text is misspelled