How can i change this for one browser while having it differently for another??
h2 {
    font-size: 150%;
    color: red;
}  
Thanks. like making it blue or 175% on another The part of solution by dude below.
How can i change this for one browser while having it differently for another??
h2 {
    font-size: 150%;
    color: red;
}  
Thanks. like making it blue or 175% on another The part of solution by dude below.
 
    
    @-moz-document url-prefix() {
    h2 {
        font-size: 150%;
        color: red;
    } 
}
See it here
See other Firefox specific css extensions here
Simple writeup on 'Tricks' here
Edit
About other browsers: You can find a lof of useful browser-specific CSS 'hacks' on browserhacks.com
