HTML5 declaration compatible with IE writing asp.net

HTML5 statement compatible with IE <! DOCTYPE html> <! -- [If IE]> <meta http-equiv = "X-UA-Compatible" content = "IE = 8"/> <! [Endif] --> <! -- [If IE 7]> <meta http-equiv = "X-UA-Compatible" content = "IE = 7"/> <! [Endif] --> <! -- [If IE 6]> <meta http-equiv = "X-UA-Compatible" content = "IE = 6"/> <! [Endif] --> about X-UA-Compatible

Currently, most websites use

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

As a compatible method of IE8, although Microsoft has made a huge step towards the standard, it is not clear that IE8 still has a series of strange rendering phenomena.
Who makes IE6 so much? Maybe we can have more time to care about IE8 after 2014, instead of IE6 or IE7.
Available Methods in X-UA-Compatible include:

<meta http-equiv="X-UA-Compatible" content="IE=5" >

<meta http-equiv="X-UA-Compatible" content="IE=7" >

<meta http-equiv="X-UA-Compatible" content="IE=8" >

<meta http-equiv="X-UA-Compatible" content="IE=edge" >

The last line always displays the webpage in the latest IE version mode.

In addition

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" >

In Emulate mode, more attention is paid to <! DOCTYPE>

So for the time being

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

Is the first choice.

Let Microsoft scan for its sins.

<! DOCTYPE html> <! -- [If IE]> <meta http-equiv = "X-UA-Compatible" content = "IE = 8"/> <! [Endif] --> <! -- [If IE 7]> <meta http-equiv = "X-UA-Compatible" content = "IE = 7"/> <! [Endif] --> <! -- [If IE 6]> <meta http-equiv = "X-UA-Compatible" content = "IE = 6"/> <! [Endif] --> about X-UA-Compatible

Currently, most websites use

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

As a compatible method of IE8, although Microsoft has made a huge step towards the standard, it is not clear that IE8 still has a series of strange rendering phenomena.
Who makes IE6 so much? Maybe we can have more time to care about IE8 after 2014, instead of IE6 or IE7.
Available Methods in X-UA-Compatible include:

<meta http-equiv="X-UA-Compatible" content="IE=5" >

<meta http-equiv="X-UA-Compatible" content="IE=7" >

<meta http-equiv="X-UA-Compatible" content="IE=8" >

<meta http-equiv="X-UA-Compatible" content="IE=edge" >

The last line always displays the webpage in the latest IE version mode.

In addition

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" >

In Emulate mode, more attention is paid to <! DOCTYPE>

So for the time being

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" >

Is the first choice.

Let Microsoft scan for its sins.