<meta http-equiv="X-UA-Compatible" content="IE=7; IE=EmulateIE9" >

What IE mode am I rendering in (based on html Conditional Comments)?

• IE5
• IE6
• IE7
• IE8
• IE9
• I am not IE!

Capabilities tests using CSS:

• .starhack { *display: block; } /* IE6 & 7 */
• * html .starhtml { display: block; } /* IE6 only */
• *+html .starplushtml { display: block; } /* IE7 only */
• Generated content:

Reliable Javascript test that uses both CC html and CC javascript:

• IE version rendered is: .

No version of IE passes the X-UA-Compatible meta value to a child iframe without one.