Can CSS Target Custom Data Attributes?

Custom Data Attribute Selectors in CSS

Modern web development often involves the use of custom HTML5 data attributes to add semantic information to elements. One of the fundamental questions when styling elements with these attributes is whether CSS can target them.

The CSS Attribute Selector

Fortunately, the answer is a resounding yes. CSS offers powerful attribute selectors that allow us to match elements based on their attribute values. For selecting elements by their data attributes, simply append the attribute name and desired value within square brackets:

[data-role="page"] {
    /* Styles for elements with data-role="page" */
}

Additional Notes

It's worth noting that:

• Despite being an HTML5 feature, most browsers support attribute selectors for non-standard attributes like data attributes.
• CSS validation is unaffected by attribute names, allowing for flexible styling.

Conclusion

CSS attribute selectors provide an efficient and versatile way to target elements by their data attributes. This capability opens up possibilities for highly granular styling and customization of web pages.

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