What are the advanced selectors?

Advanced selectors include adjacent sibling selector, universal sibling selector, child element selector, descendant selector, attribute selector, :not selector, :nth-child selector, :nth-last -child selector, :nth-of-type selector and :nth-last-of-type selector, etc. Detailed introduction: 1. Adjacent sibling selector, use the " " symbol to select the sibling element immediately after the specified element; 2. Universal sibling selector, use the "~" symbol to select the sibling element immediately after the specified element, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

Advanced selectors are a type of selector in CSS that are used to select and operate specific elements. They provide a more flexible and precise selection method. Advanced selectors can select based on the relationship, status, attributes, etc. of elements, helping developers better control and style page elements. The following are some common advanced selectors:

1. Adjacent Sibling Selector: Use the ` ` symbol to select the sibling elements immediately following the specified element. For example, the `h1 p` selector selects the `p` element immediately following the `h1` element.

2. General Sibling Selector: Use the `~` symbol to select all sibling elements after the specified element. For example, the `h1 ~ p` selector can select all `p` elements after the `h1` element.

3. Child Selector: Use the `>` symbol to select the direct child elements of the specified element. For example, the `.container > p` ​​selector can select the direct child element `p` under the `.container` element.

4. Descendant Selector: Separate two selectors with a space to select the descendant elements of the first selector. For example, the `.container p` selector selects all `p` elements within the `.container` element.

5. Attribute Selector: Use the attribute value of the element as the selector to select elements with specific attribute values. For example, the `[attribute=value]` selector selects elements with a specific attribute value.

6. :not(selector): The :not selector is used to select elements that do not match the specified selector. You can exclude certain elements and only select other elements through the :not selector.

7. :nth-child(n): The :nth-child selector is used to select the nth child element of the parent element. You can define styles for child elements at specific positions through the :nth-child selector, where n can be a specific number, keyword (such as even, odd) or formula (such as 2n 1).

8. :nth-last-child(n): The :nth-last-child selector is used to select the nth child element from the bottom of the parent element. You can define styles for the nth child element from the bottom through the :nth-last-child selector.

9. :nth-of-type(n): The :nth-of-type selector is used to select the nth child element of a specific type in the parent element. You can define styles for child elements of a specific type through the :nth-of-type selector.

10. :nth-last-of-type(n): The :nth-last-of-type selector is used to select the nth child element from the last of a specific type in the parent element. You can define styles for the nth child element from the last of a specific type through the :nth-last-of-type selector.

These advanced selectors can be used in combination to achieve more precise and flexible selection and styling. Advanced selectors play an important role in CSS and can help developers better control and position page elements.

It should be noted that the compatibility of different advanced selectors may vary in different browsers. When using advanced selectors, it is recommended to perform compatibility testing first to ensure that styles are applied correctly in the target browser.

In summary, common advanced selectors include adjacent sibling selectors, universal sibling selectors, child element selectors, descendant selectors, attribute selectors, :not selectors, :nth-child selections selector, :nth-last-child selector, :nth-of-type selector and :nth-last-of-type selector. By using these advanced selectors, developers can select and style page elements with more precision. I hope the above answer is helpful to you, if you have any other questions, please feel free to let me know.

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