Demo: http://jsfiddle.net/thirtydot/K3TuN/1323/
li {
color: black;
}
li:nth-child(odd) {
color: #777;
}
li:nth-child(even) {
color: blue;
}<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>Documentation:
- https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-child
- http://caniuse.com/css-sel3 (it works almost everywhere)