/*
CSS Browser Selector v0.3.2
Rafael Lima (http://rafael.adm.br)
http://rafael.adm.br/css_browser_selector
License: http://creativecommons.org/licenses/by/2.5/
Contributors: http://rafael.adm.br/css_browser_selector#contributors
*/
function css_browser_selector(u){var ua = u.toLowerCase(),is=function(t){return ua.indexOf(t)>-1;},g='gecko',w='webkit',s='safari',h=document.getElementsByTagName('html')[0],b=[(!(/opera|webtv/i.test(ua))&&/msie\s(\d)/.test(ua))?('ie ie'+RegExp.$1):is('firefox/2')?g+' ff2':is('firefox/3')?g+' ff3':is('gecko/')?g:/opera(\s|\/)(\d+)/.test(ua)?'opera opera'+RegExp.$2:is('konqueror')?'konqueror':is('chrome')?w+' chrome':is('applewebkit/')?w+' '+s+(/version\/(\d+)/.test(ua)?' '+s+RegExp.$1:''):is('mozilla/')?g:'',is('j2me')?'mobile':is('iphone')?'iphone':is('ipod')?'ipod':is('mac')?'mac':is('darwin')?'mac':is('webtv')?'webtv':is('win')?'win':is('freebsd')?'freebsd':(is('x11')||is('linux'))?'linux':'','js']; c = b.join(' '); h.className += ' '+c; return c;}; css_browser_selector(navigator.userAgent);

http://rafael.adm.br/css_browser_selector

[via rtcrm]
CSS Browser Selector is a very small javascript with just one line and less than 1kb which empower CSS selectors. It gives you the ability to write specific CSS code for each operating system and each browser.

CSS Browser Selector

css, js

JavaScript