Web Front-endCSS TutorialWhy Does jQuery's `:not()` Selector Differ from CSS's `:not()` Selector?
Why is jQuery :not() Selector Not Working in CSS?
Introduction
Despite jQuery's claim to CSS3 compliance, the :not() selector behaves differently in jQuery and CSS due to extensions made by jQuery.
Key Differences
- Comma-Separated Lists: jQuery allows complex selector lists in :not(), while the standard :not() accepts only single simple selectors.
- Compound Selectors: jQuery permits compound selectors within :not(), but CSS requires chaining multiple :not() clauses.
- Combinators: jQuery can use descendant combinators in :not(), which is prohibited in CSS.
CSS Workaround
To achieve the desired behavior in CSS, use multiple :not() clauses chained together:
#sectors > div:not(.alpha):not(.beta):not(.gamma)
Conclusion
The limited functionality of the CSS :not() selector leads to inconsistencies and inconveniences when migrating from jQuery to CSS. However, advancements in CSS suggest that future versions will align more closely with jQuery's extended :not() behavior.
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