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Usage of CSS [attribute] Selector
The CSS [attribute] selector is used to select elements that contain a specific attribute, regardless of the attribute's value. This is useful for styling elements based on the presence of attributes like alt, target, title, or any custom attributes.
Syntax
[attribute] {
/* CSS properties */
}
Example: Selecting Images with Alt Attributes
The following example applies a border to all images that have an alt attribute −
<!DOCTYPE html>
<html>
<head>
<style>
img[alt] {
border: 3px solid orange;
border-radius: 5px;
}
img {
margin: 10px;
display: block;
}
</style>
</head>
<body>
<h3>Image without alt attribute:</h3>
<img src="/css/images/logo.png" height="100" width="100">
<h3>Image with alt attribute:</h3>
<img src="/css/images/logo.png" height="100" width="100" alt="TutorialsPoint Logo">
</body>
</html>
The first image appears without any border. The second image appears with an orange border because it has an alt attribute.
Example: Selecting Links with Target Attributes
This example styles all links that have a target attribute −
<!DOCTYPE html>
<html>
<head>
<style>
a[target] {
background-color: yellow;
padding: 5px;
text-decoration: none;
border-radius: 3px;
}
a {
display: block;
margin: 10px 0;
color: blue;
}
</style>
</head>
<body>
<a href="/html/index.htm">Normal Link</a>
<a href="/css/index.htm" target="_blank">Link with Target</a>
<a href="/javascript/index.htm" target="_self">Another Link with Target</a>
</body>
</html>
The first link appears as a normal blue link. The second and third links have yellow backgrounds because they contain target attributes.
Conclusion
The [attribute] selector is perfect for targeting elements based on attribute presence rather than specific values. This makes it ideal for highlighting elements with accessibility attributes or special behaviors.
Updated on: 2026-03-15T12:30:55+05:30
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