IE条件语句IE hack大全_

1、IE条件语句IE hack大全_ Conditional comments work as follows: 代码如下: !-if IE 6Special instructions for IE 6 here!endif- code Their basic structure is the same as an HTML comment (!- -). Therefore all other browsers will see them as normal comments and will ignore them entirely. IE, though, has been programm

2、ed to recognize the special !-if IE syntax, resolves the ifand parses the content of the conditional comment as if it were normal page content. Since conditional comments use the HTML comment structure, they can only be included in HTML files, and not in CSS files. Id have preferred to put the speci

3、al styles in the CSS file, but thats impossible. You can also put an entire new link tag in the conditional comment referring to an extra style sheet. Example Below I added a lot of conditional comments that print out messages according to your IE version. Note however, that if you use multiple Expl

4、orers on one computer, the conditional comments will render as if all these Explorer versions are the highest Explorer version available on your machine (usually Explorer 6.0). Test Below are a few conditional comments that reveal the IE version youre using. According to the conditional comment this

5、 is IE According to the conditional comment this is IE 7 According to the conditional comment this is IE lower than 9 According to the conditional comment this is IE lower or equal to 7 According to the conditional comment this is IE greater than 6 Code The syntax I use is: code p class=accent !-if

6、IE According to the conditional comment this is IEbr / !endif- !-if IE 6 According to the conditional comment this is IE 6br / !endif- !-if IE 7 According to the conditional comment this is IE 7br / !endif- !-if IE 8 According to the conditional comment this is IE 8br / !endif- !-if IE 9 According t

7、o the conditional comment this is IE 9br / !endif- !-if gte IE 8 According to the conditional comment this is IE 8 or higherbr / !endif- !-if lt IE 9 According to the conditional comment this is IE lower than 9br / !endif- !-if lte IE 7 According to the conditional comment this is IE lower or equal

8、to 7br / !endif- !-if gt IE 6 According to the conditional comment this is IE greater than 6br / !endif- !-if !IE - According to the conditional comment this is not IEbr / !- !endif- /p Note the special syntax: gt: greater than lte: less than or equal to Also note the last one. It has a different sy

9、ntax, and its contents are shown in all browsers that are not IE: 代码如下: !-if !IE - CSS hack? Are conditional comments CSS hacks? Strictly speaking, yes, since they can serve to give special style instructions to some browsers. However, they do not rely on one browser bug to solve another one, as all

10、 true CSS hacks do. Besides, they can be used for more than CSS hacks only (though that rarely happens). Since conditional comments are not based on a browser hack but on a deliberate feature I believe they are safe to use. Sure, other browsers could implement conditional comments, too (though as yet none have done so), but theyre unlikely to react to the specific query !-if IE. I use conditional comments, though sparingly. First I see if I can find a real CSS solution to an Explorer Windows problem. If I cant, though, I dont hesitate to use them. Comment tag A reader told me IE