The document discusses the text-decoration CSS property which specifies how text is decorated, including common values like none for normal text, inherit to take the parent's value, overline to draw a line above the text, and underline to draw a line below the text. Examples are provided setting the text-decoration for paragraphs with different class names to these various values.

1. The text-decoration property specifies how the text will be decorated.
Commonly used values are:
none - The default value, this defines a normal text
inherit - Inherits this property from its parent element
overline - Draws a horizontal line above the text
underline - Draws a horizontal line below the text
text-decoration
p.none {
text-decoration: none;
}
p.inherit {
text-decoration: inherit;
}
p.overline {
text-decoration: overline;
}
p.underline {
text-decoration: underline;
}
p.line-through {
text-decoration: line-through;
}