Pseudo Selectors Error


I am trying to figure out what I have done wrong here. I simply can't understand it.

Oops, try again. Did you use 'nth-child' to target your third paragraph? is the error I am receiving.

<!DOCTYPE html>
		<link type="text/css" rel="stylesheet" href="stylesheet.css"/>
		<h3 class="fancy">Heading 3</h3>
		<p class="fancy">Paragraph 1</p>
		<p id="serious">Paragraph 2</p>
		<p>Paragraph 3</p>

    font-Family: Courier, cursive;
    color: violet;
    font-Family: Courier;
    color: #8C8C8C;
body :nth-Child(4)
    font-Size: 26px;
    color: #8C8C8C;


try to spell child with lowercase c


That worked however I am assuming that is just a Code Academy thing? As it perfectly formatted the text to what I had specified.