A pseudo-class in CSS is a keyword added to a selector that specifies a special state of the selected element(s) that can’t be targeted using simple selectors. Pseudo-classes allow you to style elements based on their interaction state or position in the document. There are several kinds of pseudo-classes, including but not limited to:
1. :hover: Selects an element when a user hovers over it.
2. :active: Selects an element when it is being activated by a user (e.g., clicked on).
3. :first-child: Selects the first child of its parent element.
4. :nth-child(n): Selects elements based on their position in a parent element (e.g., every third element).
5. :not(selector): Selects elements that do not match the given selector.
In CSS, a pseudo-class defines the special state of an element.
It is used to:
1. Style an element when you hover a mouse over it.
2. Style visited and unvisited links differently.
3. Style an element when it gets focused.
CSS has over 60 pseudo-classes. However, many of them are not supported by some browsers.
This reply was modified 10 months, 2 weeks ago by kees_b.
A pseudo-class is a keyword added to a CSS selector that targets an element based on its specific state or condition. There are two main types of pseudo-classes:
1. Basic Pseudo-Classes: These target common states like hover (when the mouse is over an element) or focus (when an element is selected).
2. Functional Pseudo-Classes: These use arguments to target more specific states, like :nth-child(2) (targets the second child element).