attributeContainsPrefix selector

Description: Selects elements that have the specified attribute with a value either equal to a given string or starting with that string followed by a hyphen (-).

This selector was introduced into the CSS specification to handle language attributes.

Example:

Finds all links with an hreflang attribute that is english.

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<!DOCTYPE html>
<html>
<head>
<style>
a { display: inline-block; }
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<a href="example.html" hreflang="en">Some text</a>
<a href="example.html" hreflang="en-UK">Some other text</a>
<a href="example.html" hreflang="english">will not be outlined</a>
<script>
$('a[hreflang|="en"]').css('border','3px dotted green');
</script>
</body>
</html>

Demo: