CSS Styling for Disabled Inputs: disabled** Attribute Selector vs. :disabled Pseudo-Class
Overview
When styling disabled input elements, developers have two options:
.myInput[disabled] { ... }
.myInput:disabled { ... }
Which approach is more contemporary and advisable for future use?
Answer
Attribute selectors have been available since CSS2 and are not considered the modern CSS3 approach.
Technical Considerations
Attribute selectors depend on the presence of a disabled attribute to apply styling. Non-HTML elements or future HTML revisions may not follow this convention, resulting in mismatched styles.
Pseudo-Class Offers UI Independence
The :disabled pseudo-class, introduced in Selectors 3, targets elements based on their disabled state, regardless of the specific attribute used to indicate that state. This is determined by the document language.
Browser Compatibility
Both attribute selectors and pseudo-classes are widely supported by modern browsers.
Semantic Considerations
Pseudo-classes such as :enabled and :disabled convey specific semantics about the elements they target. This can enhance readability and maintainability of CSS code.
Recommendation
For HTML styling where cross-browser compatibility is not a concern, the :enabled and :disabled pseudo-classes are preferred due to their semantic benefits and independence from document-specific attributes.
Additional Note
Setting the disabled property on a DOM element also modifies the HTML element's disabled attribute. This implies that from a DOM manipulation standpoint, there is no functional difference between using an attribute selector or a pseudo-class.
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