CSS notation for different browsers such as Ie6,ie7,ie8,ie9,ff

First of all, we introduce the principle of hack, that is, different browsers to identify different characters

Common special character recognition tables in CSS:

(1) *: IE6+IE7 can recognize *, and standard browser FF+IE8 is not recognized *;

(2)!important: Except IE6 can not recognize!important, FF+IE8+IE7 can identify!important;

(3) _: In addition to IE6 support _, Ff+ie8+ie7 are not supported _;

(4) \9: All IE browsers are recognized (IE6, IE7, IE8, IE9)

Example:

(1) difference between FF (IE8) and IE6 IE7

Backgorund:orange; FF and IE8 background color will be orange

*backgorund:red; IE6 and IE7 background color will be red

(2) difference between FF (IE8) and IE6 and IE7

Background:orange; FF and IE8 background color will be orange

*background:red!important; IE7 background color will be red

*background:blue; IE6 background color will be blue

(3) difference between FF (IE8) and IE6 and IE7

Background:orange; FF and IE8 background color will be orange

*background:red; IE7 background color will be red

_background:blue; IE6 background color will be blue

(4) difference between FF and IE6 IE7 IE8 IE9

Color:gray; Non-IE browser font color will be gray in FF

color:red\9; IE8 IE9 font color will be red

*color:green; IE7 font color will be green

_color:blue; IE6 font color will be blue

Hint: CSS hack writing order: first write FF and other non-IE browser required style, followed by write IE8 required style, then IE7, then IE6!