Css Conditional Formatting

I have the below code to check if the user are using IE7...and it needs to over ride the .web_info style. If not IE7 it uses the default style, if its not IE at all it will use the

Solution 1:

Shouldn't this look like

<!--[if IE 7]>
..
<![endif]-->

and

<!--[if !IE]>
...
<![endif]-->

Note that

<!--[if !IE]>

should never yield true as these Conditional comments only get interpreted by IE.

Solution 2:

Conditional comments are IE specific and therefore "<![if !IE]>" is not a valid instruction for firefox or any other browser. Additionally I would suggest you try the following syntax:

<!--[ifIE7]>
<styletype="text/css">.web_info
{
left: 450px;
top: 200px;
width: 300px;
height: 60px;   
}
</style>    
<![endif]-->

One final note on my part: Since IE7/IE8 are mostly standard compliant, these CSS hacks should be avoided, if possible.

Update: Thanks to slosd I stand corrected! According to "Supporting IE with conditional comments" you can use the following to hide something from IE:

<!--[if !IE]>-->
do something; IE will ignore this, other browsers parse it
<!--<![endif]-->

Sorry for the inconvenience I caused!

Full working example:

<linktype="text/css"href="../styles.css"><!--[if !IE]>--><linktype="text/css"href="../ff_styles.css"><!--<![endif]--><!--[if IE 7]>
  <style type="text/css">
  .web_info{
    left: 450px;
    top: 200px;
    width: 300px;
    height: 60px;   
  }
  </style>
<![endif]-->

Solution 3:

Don't check if the browser is not IE, check if it is IE7 then if it is IE and then fallback for default. More info: http://www.quirksmode.org/css/condcom.html