Browser compatibility issues

The various browser compatibility issues I'm currently experiencing

The 1.ie6/7/8border-radiu property. Workaround: BACKGROUNDSIZE.HTC, BACKGROUNDSIZE.MIN.HTC, can alleviate the simulated fillet.

2.IE6 does not recognize transparent properties. WORKAROUND: Dd_belatedpng_jb51.net,js load the file.

3. Google unexpectedly and Safari sometimes show different. The hack is used, as follows:

1. <!--[if! ie]><!--> In addition to IE can be recognized <!--<! [endif]-->
2. <!--[if ie]> all IE recognizable <! [endif]-->
3. <!--[if IE 5.0]> only IE5.0 can be identified <! [endif]-->
4. <!--[if IE 5]> only IE5.0 and IE5.5 can be identified <! [endif]-->
5. <!--[if GT IE 5.0]> IE5.0 and IE5.0 above can be identified <! [endif]-->
6. <!--[if IE 6]> only IE6 recognizable <! [endif]-->
7. <!--[if Lt IE 6]> IE6 and IE6 The following versions are recognized <! [endif]-->
8. <!--[if GTE IE 6]> IE6 and IE6 above are recognized <! [endif]-->
9. <!--[if IE 7]> only IE7 recognizable <! [endif]-->
<!--[if Lt IE 7]> IE7 and IE7 The following versions are recognized <! [endif]-->
<!--[if GTE IE 7]> IE7 and IE7 above are recognized <! [endif]-->

12. Differentiate between Google and Safari's JQ

$ (document). Ready (function () {
That piece of code
var useragent = Navigator.userAgent.toLowerCase ();
$.browser.chrome =/chrome/.test (Navigator.userAgent.toLowerCase ());

Is this a version of Chrome?
if ($.browser.chrome) {
useragent = useragent.substring (Useragent.indexof (' chrome/') +7);
useragent = useragent.substring (0,useragent.indexof ('. '));
$.browser.version = useragent;
If It is a chrome then jQuery thinks it's safari so we've had to tell it it's it isn ' t
$ ("#ggsb"). AddClass ("Chrome");
}

Is this a version of Safari?
if ($.browser.safari) {
useragent = useragent.substring (Useragent.indexof (' version/') +8);
useragent = useragent.substring (0,useragent.indexof ('. '));
$.browser.version = useragent;
}
});

</script>

. chorme{}
. safari{}

"FireFox"

@-moz-document Url-prefix () {. Classname{color: #FFF}}

"WebKit kernel: Safari Chrome"

@media screen and (-webkit-min-device-pixel-ratio:0) {. Classname{color: #FFF}}

"Presto Core: Opera"

@media all and (-webkit-min-device-pixel-ratio:10000), not all and (-webkit-min-device-pixel-ratio:0) {head~body. Classname{color: #FFF}

Browser compatibility issues