CSS browser targeting URL: http://css-tricks.com/snippets/css/browser-specific-hacks/

CSS browser targeting

/* IE 6 */
* html .yourclass { }
 
/* IE 7 */
*+html .yourclass{ }
 
/* IE 7 and modern browsers */
html>body .yourclass { }
 
/* Modern browsers (not IE 7) */
html>/**/body .yourclass { }
 
/* Opera 9.27 and below */
html:first-child .yourclass { }
 
/* Safari */
html[xmlns*=""] body:last-child .yourclass { }
 
/* Safari 3+, Chrome 1+, Opera 9+, Fx 3.5+ */
body:nth-of-type(1) .yourclass { }
 
/* Safari 3+, Chrome 1+, Opera 9+, Fx 3.5+ */
body:first-of-type .yourclass { }
 
/* Safari 3+, Chrome 1+ */
@media screen and (-webkit-min-device-pixel-ratio:0) {
.yourclass { }
}