This is giant font.
This is large font.
This is big font.
This is medium font.
This is little font.
This is small font.
This is tiny font.

This is underlined text (which some might erroneously suspect of being a link). This is plane text. This is bold text. This is plane text. This is slanted text. This is plane text. This is fixed-width text.

Now consider this:

This text is in a "blockquote" tag. Generally speaking this tag is used to indicate block quotes! Sometimes, it is used for other things.