How to use Css instead of Xpath in selenium

Sometimes selenium gets confused to identify an element on the web page because more than one elements have the same name and ids so to handle this situation we instructs selenium to identify the object using CSS instead of Xpath.

<tr>
<td>open</td>
<td>http://economictimes.indiatimes.com/</td>
<td></td>
</tr>
<tr>
<td>type</td>
<td>css=input[style='width: 120px; font-size: 12px;']</td>
<td>Business</td>
</tr>

In selenium RC you can use below code 

selenium.open("http://economictimes.indiatimes.com/");

selenium.type("css=input[style='width: 120px; font-size: 12px;']", "Business");

There is another way to use css instead of Xpath

Try below code for clicking on search button on www.google.com

<tr>
<td>type</td>
<td>q</td>
<td>www.automationtricks.blogspot.com</td>
</tr>
<tr>
<td>click</td>
<td>css=span.ds > span.lsbb > input.lsb</td>
<td></td>
</tr>