What does css selector include

CSS selector is a pattern used to select HTML elements and apply styles. Types include: basic selectors: element selector, class selector, ID selector, wildcard selector. Combination selectors: descendant selector, child element selector, adjacent sibling selector, universal sibling selector. Other selectors: attribute selectors, pseudo-classes, pseudo-elements.

CSS Selectors

CSS selectors are a set of selectors used to select HTML elements and apply styles to them model. They provide a means of fine-grained control over the appearance and behavior of documents.

The following are CSS selector types:

Basic selector

• Element selector:Select specific elements , for example p represents a paragraph.
• Class selector: Select elements with a specific class name, such as .button.
• ID selector: Selects elements with a specific ID, such as #header.
• Wildcard selector: Selects all elements, for example *.

Combined selector

• Descendant selector: Select the descendants of an element, for example p a represents the anchor element in the paragraph.
• Child element selector: Select the direct child elements of an element, for example ul > li represents a list item in an unordered list.
• Adjacent sibling selector: Selects an element immediately following another element, such as p div.
• Universal sibling selector: Selects an element immediately after or before another element, such as p ~ div.

Other selectors

• Attribute selector: Select elements with specific attributes, such as [type ="checkbox"].
• Pseudo class: Select an element in a specific state, for example :hover means when hovering over the element.
• Pseudo elements: Select a specific part of the element, for example ::before means content inserted before the element.

By combining these selector types, you can create complex selectors to finely target elements on the page. This makes it easier to customize the appearance and behavior of elements.

The above is the detailed content of What does css selector include. For more information, please follow other related articles on the PHP Chinese website!