Attribute Contains Prefix Selector [name|="value"]

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 (-).

.attributeContainsPrefix(attribute, value)

attribute StringAn attribute name.
value StringAn attribute value. Can be either a valid identifier or a quoted string.

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

Finds all links with an hreflang attribute that is english.

<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>
a {
  display: inline-block;
$("a[hreflang|='en']").css("border", "3px dotted green");

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