Day 022 - Selecting with CSS
This example shows how you can take advantage of using CSS3 selectors.
$('ul li:first-child').css('color', 'crimson');
Although it's possible to do this in JavaScript using:
$('ul li:first').css('color', 'crimson');
This will be slower, however it will also work in older browsers such as IE6 if this is a requirement.
Demo.