Strong is used to indicate strong importance
This text has added emphasis
The strong element is stylistically different text from normal text, without any special importance
The em element is text that is set off from the normal text
The u element is text with an unarticulated, though explicitly rendered, non-textual annotation
This text is deleted and This text is inserted
This text has a strikethrough
Superscript®
Subscript for things like H2O
This small text is small for for fine print, etc.
Abbreviation: HTML
Keybord input: Cmd
This text is a short inline quotation
This is a citation
The dfn element indicates a definition.
The mark element indicates a highlight
This is what inline code looks like.
This is sample output from a computer program
The variarble element, such as x = y