优化滚动条样式

::-webkit-scrollbar
  {
    width: 4px;
    height: 10px;
  }
  /*滑动轨道*/ 
  ::-webkit-scrollbar-track
  {
    border-radius: 0px;
    background: none;
  }
  /*滑块*/
  ::-webkit-scrollbar-thumb
  {
    border-radius: 5px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.2);
    background-color: #2B8099
  }
  /*滑块效果*/ 
  ::-webkit-scrollbar-thumb:hover
  {
    border-radius: 5px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.2);
    background-color: rgba(85, 85, 85, 0.4);
  }

兼容支持非Webkit浏览器
malihu-custom-scrollbar-plugin
demo:http://manos.malihu.gr/repository/custom-scrollbar/demo/examples/complete_examples.html

<link rel="stylesheet" type="text/css" href="../css/jquery.mCustomScrollbar.css"/>
<script src="../js/jquery.mCustomScrollbar.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" src="../js/jquery.mCustomScrollbar.concat.min.js"></script>
<script type="text/javascript">
    if (!$.browser.webkit) {
        $.mCustomScrollbar.defaults.scrollButtons.enable=true; //enable scrolling buttons by default
        $.mCustomScrollbar.defaults.axis="yx"; //enable 2 axis scrollbars by default
        $(".products").mCustomScrollbar({theme:"light-thick"});
    }
</script>

解决Cannot read property 'webkit' of undefined

(function(jQuery){  
  
if(jQuery.browser) return;  
  
jQuery.browser = {};  
jQuery.browser.mozilla = false;  
jQuery.browser.webkit = false;  
jQuery.browser.opera = false;  
jQuery.browser.msie = false;  
  
var nAgt = navigator.userAgent;  
jQuery.browser.name = navigator.appName;  
jQuery.browser.fullVersion = ''+parseFloat(navigator.appVersion);  
jQuery.browser.majorVersion = parseInt(navigator.appVersion,10);  
var nameOffset,verOffset,ix;  
  
// In Opera, the true version is after "Opera" or after "Version"  
if ((verOffset=nAgt.indexOf("Opera"))!=-1) {  
jQuery.browser.opera = true;  
jQuery.browser.name = "Opera";  
jQuery.browser.fullVersion = nAgt.substring(verOffset+6);  
if ((verOffset=nAgt.indexOf("Version"))!=-1)  
jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  
}  
// In MSIE, the true version is after "MSIE" in userAgent  
else if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {  
jQuery.browser.msie = true;  
jQuery.browser.name = "Microsoft Internet Explorer";  
jQuery.browser.fullVersion = nAgt.substring(verOffset+5);  
}  
// In Chrome, the true version is after "Chrome"  
else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {  
jQuery.browser.webkit = true;  
jQuery.browser.name = "Chrome";  
jQuery.browser.fullVersion = nAgt.substring(verOffset+7);  
}  
// In Safari, the true version is after "Safari" or after "Version"  
else if ((verOffset=nAgt.indexOf("Safari"))!=-1) {  
jQuery.browser.webkit = true;  
jQuery.browser.name = "Safari";  
jQuery.browser.fullVersion = nAgt.substring(verOffset+7);  
if ((verOffset=nAgt.indexOf("Version"))!=-1)  
jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  
}  
// In Firefox, the true version is after "Firefox"  
else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {  
jQuery.browser.mozilla = true;  
jQuery.browser.name = "Firefox";  
jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  
}  
// In most other browsers, "name/version" is at the end of userAgent  
else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) <  
(verOffset=nAgt.lastIndexOf('/')) )  
{  
jQuery.browser.name = nAgt.substring(nameOffset,verOffset);  
jQuery.browser.fullVersion = nAgt.substring(verOffset+1);  
if (jQuery.browser.name.toLowerCase()==jQuery.browser.name.toUpperCase()) {  
jQuery.browser.name = navigator.appName;  
}  
}  
// trim the fullVersion string at semicolon/space if present  
if ((ix=jQuery.browser.fullVersion.indexOf(";"))!=-1)  
jQuery.browser.fullVersion=jQuery.browser.fullVersion.substring(0,ix);  
if ((ix=jQuery.browser.fullVersion.indexOf(" "))!=-1)  
jQuery.browser.fullVersion=jQuery.browser.fullVersion.substring(0,ix);  
  
jQuery.browser.majorVersion = parseInt(''+jQuery.browser.fullVersion,10);  
if (isNaN(jQuery.browser.majorVersion)) {  
jQuery.browser.fullVersion = ''+parseFloat(navigator.appVersion);  
jQuery.browser.majorVersion = parseInt(navigator.appVersion,10);  
}  
jQuery.browser.version = jQuery.browser.majorVersion;  
})(jQuery);