CSS hack: differentiate IE6, IE7, and Firefox-website Standardization

 

Difference between different browsers, CSS hack writing:

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; * Background: green;

Difference ff, IE7, IE6:

Background: orange; * Background: Green! Important; * Background: blue;

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
×
√
√

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.

CSS hack: differentiate IE6, IE7, and Firefox-website Standardization