CSS hack: CSS distinguishes browsers IE6/IE7/Firefox

 

CSS hack:

Difference between IE6 and FF:
Background: orange; * Background: blue;

Difference between IE6 and IE7:
Background: Green! Important; Background: blue;

Difference between IE7 and FF:
Background: orange; * bac it talent Network (http://it.ad0.cn) kground: green;

Difference ff, IE7, IE6:
Background: orange; * Background: Green! Important; * Background: blue;

Www.ad0.cn
Note: Both IE and standard browsers (such as ff) cannot recognize *;
IE6 can recognize *, but cannot recognize it! Important,
IE7 can recognize * and can also recognize! Important;
FF cannot recognize *, but can recognize it! Important;

 

IE6 IE7 FF
* √ *
! Important × √

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Add another underscore "_",
IE6 supports underlines, while IE7 and Firefox do not.

So you can also distinguish IE6, IE7, and Firefox.
: Background: orange; * Background: green; _ Background: blue;

Note: No matter what method, the order of writing is Firefox's preface, IE7's writing in the middle, and IE6's writing at the end.