Existence [] attribute selector

Matches the attribute, whatever its value.

Selectors Level 3, Section 6.3Internet Explorer 9

 

Syntax

[selatt] {...}

Parameters

sel

A selector.

att

Must be either an Identifier or a String.

Standards information

Remarks

Note  Requires Windows Internet Explorer 7 or later.
 
Note  Attribute selectors are not supported in webpages that are displayed in the Microsoft Internet Explorer 5 document mode (also known as "Quirks" mode). To use attribute selectors, add a !DOCTYPE directive that specifies a standard-based document. For more information, see Defining Document Compatibility.
 

Attributes are case-sensitive.

Examples

The following style rule selects any element with an "attr" attribute whose value is exactly "Value".

CSS
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<!DOCTYPE html>
<html>
  <head>
    <style type="text/css">
      .test          { display:none; }
      [attr="Value"] { display:block; }
    </style>
  </head>
  <body>
    <div class="test" attr="Value">Test for [=] (Value) succeeded.</div>
  </body>
</html>

Code example: http://samples.msdn.microsoft.com/workshop/samples/author/css/attr_selectors.htm

 

 

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