What are Pseudo-classes? A pseudo-class is used to define a special state of an element. For example, it can be used to: Style an element when a user moves the mouse over it; Style visited and unvisited links differently; Style an element when it gets focus; Style valid/invalid/required/optional form elements

Apr 10, 2025 · A CSS pseudo-class is a keyword added to a selector that lets you style a specific state of the selected element(s). For example, the pseudo-class :hover can be used to select a button when a user's pointer hovers over the button and this selected button can then be styled.

Apr 11, 2025 · Pseudo-classes enable you to target an element when it's in a particular state, as if you had added a class for that state to the DOM. Pseudo-elements act as if you had added a whole new element to the DOM, and enable you to style that.

possible duplicate of Is is possible to create inline pseudo styles? No, this is not possible. In documents that make use of CSS, an inline style attribute can only contain property declarations; the same set of statements that appears in each ruleset in a …

I was wondering if there's a way to add a CSS class to pseudo-elements, such as :after. I want to use :after to append an error message. I also want the error message styled the same way as the other error messages. This works: content: "Error Message"; color: red; But can I do something like this to add more than the color styling?

Nov 22, 2008 · Instead of manipulating the pseudo-classes directly, create real classes that model the same things, like a "hover" class or a "visited" class. Style the classes with the usual "." syntax and then you can use JavaScript to add or remove classes from an …

Dec 28, 2024 · A keyword added to CSS selectors to specify a particular state of an HTML element is called a pseudo-class. A CSS selector can have a pseudo-class added to it using the colon syntax :, as in a:hover {... }.

Oct 13, 2020 · Pseudo-classes are declared in CSS by appending a : and the name of the pseudo-class to a tag, class, or ID selector. This pseudo-class will then be automatically applied to any HTML content assigned the tag, class, or ID of the pseudo-class.

Aug 20, 2024 · CSS pseudo-classes are powerful tools that allow you to select and style elements on a web page based on their state, position in the DOM, and other characteristics. With the ability to apply styles dynamically without additional markup, pseudo-classes are invaluable in creating compelling web interfaces.

Using anchor pseudo-classes links can be displayed in different ways: These pseudo-classes let you style unvisited links differently from visited ones. The most common styling technique is to remove underlines from visited links. color: blue; text-decoration: none;