CSS: selecting a specific child

The selectors are one of the most powerful features in CSS. Sometimes they can save you a lot of additional work. In this article I'll show you how to set the style of a specific child in a list of elements.

The example's html code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    <head>
      <title></title>
    </head>
    <body>
      <div id="main">
      <span>aaaaa</span>
      <span>bbbbb</span>
      <span>ccccc</span>
      <span>ddddd</span>
      <span>eeeee</span>
    </body>
  </html>

So, let's imagine that we have to set a background color for the "span" tag with "ddddd" content. There are several available solutions with javascript, like this one (jQuery):

$("#main").find("span").eq(3).css("background", "#F00");

That's simple solution, but it requires javascript. We can do that same thing by using only CSS.First, we will select all the "span" childs:

#main > span {	font-family: Verdana;	font-size: 12px;	padding: 3px;}

Changing the style for only the first "span" tag:

#main > span:first-child {	color: #F00;}

And at the end styling the fourth element:

#main > span:first-child + span + span + span {	background: #F00;}

And the result is:[1]

P.S.don't forgot to add a DOCTYPE in your html. The code above works in IE7, IE8, FireFox, Opera, Safari, Chrome