Various browsers CSS hack

When you write CSS, add the browser identifier to the style sheet. The differences between different browsers are as follows:

Ie can recognize *, but standard browsers (such as ff) cannot recognize *;
IE6 can recognize *, but cannot recognize it! Important;
IE7 can recognize * and can also recognize! Important;
IE8 can recognize \ 0, cannot recognize *, +, _, * +! Important;
FF cannot recognize *, but can recognize it! Important;
For example, style = "* width: 10px! Important; width: 20px ;"
In this way, the width of IE6 is 10px, and the width of IE7 is 20px.

There are three other methods:

One type:
Width: 100px;/* Firefox and other browsers */
Width: 200px \ 0;/* IE8 can recognize \ 0 */
* Width: 300px! Important;/*, IE7 can recognize both * and important */
* Width: 400px;/* IE6 can recognize */
/* Pay attention to the sequence */

Two types:
Width: 100px;/* Firefox and other browsers */
Width: 200px \ 0;/* IE8 can recognize \ 0 */
* Width: 300px;/* IE7 can recognize */
_ Width: 400px;/* IE6 can recognize underlines */
/* Pay attention to the sequence */

Three types:
Width: 100px;/* Firefox and other browsers */
Width: 200px \ 0;/* IE8 can recognize \ 0 */
+ Width: 300px;/* + only recognizes IE7 */
_ Width: 400px;/* IE6 can recognize underlines */
/* Pay attention to the sequence */

1 .. color1 {color: # f00; color/* \ **/: # 00f/* \ **/}/* IE6, IE7, IE8, FF, op, sa recognition */
2 .. color2 {color: # f00; color/* \ **/: # 00f/* \ 9 **/}/* IE7, IE8, FF, op, sa recognition */
3. color3 {color: # f00; color/* \ **/: # 00f \ 9}/* IE6, IE7, IE8 recognition */
4 .. color4 {color: # f00; color/* \ **/: # 00f \ 9}/* IE7, IE8 recognition * // * There is a space between "color" and */
OP indicates opera, sa indicates Safari
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Hack supported by various browsers:
Width: 100px \ 0;/* supports IE8 */

_ Width: 100px;/* supports IE6 */

[Width: 100px;/* supports IE6, 7 */

+ Width: 100px;/* supports IE6, 7 */

* Width: 100px;/* supports IE6, 7 */

* Width: 100px! Important;/* supports IE6, 7 ,*/

* + Width: 100px;/* supports IE6, 7 ,*/

* + Width: 100px! Important;/* supports IE6, 7 ,*/

Width: 100px \ 9;/* supports IE6, 7, 8 */

Width: 100px! Important;/* supports IE6, 7,8, FF */

W \ idth: 100px;/* ie5.x does not support IE6, IE7, IE8, and FF */

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IE condition annotation function:

<! -- [If IE]> This content is only visible to IE <! [Endif]->
<! -[If IE 6.0]> This content is only visible to ie6.0 <! [Endif]->
<! -[If ie 7.0]> This content is only visible to ie7.0 <! [Endif]-> by he min
Source: http://www.hemin.cn
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