What are the data selector addresses?

Data selector addresses commonly include "ID selector", "class selector", "element selector", "attribute selector", "pseudo-class selector", "descendant selector", " Eight types of "adjacent sibling selectors" and "wildcard selectors": 1. Use the # symbol, followed by the ID name of the element; 2. Use the . symbol, followed by the class name of the element; 3. Use the element name as the selector; 4. , Select elements with specific attributes; 5. Select a specific state or position of an element; 6. Select descendant elements of the specified element; 7. Select sibling elements adjacent to the specified element, etc.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

In web development, the commonly used data selectors (element selectors) include the following:

1. ID selector : Use the # symbol followed by the ID name of the element. For example, to select the element with the ID "myElement", you can use #myElement.

2. Class selector: Use the . symbol followed by the class name of the element. For example, to select an element with the class name "myClass", you would use .myClass.

3. Element selector: Use the element name directly as the selector. For example, to select all

   elements, you can use div.

4. Attribute selector: Select elements with specific attributes. For example, to select elements with data-attribute attributes, you can use [data-attribute].

5. Pseudo-class selector: used to select a specific state or position of an element. For example, to select the first child element, you can use: first-child.

6. Descendant selector: Selects descendant elements of the specified element. For example, to select all

   elements within the

   element, you can use div p.

7. Adjacent sibling selector: selects sibling elements adjacent to the specified element. For example, to select the

   element immediately after the

   element, you can use h2 p.

8. Wildcard selector: Use * to select all elements. For example, to select all elements on the page, you can use *.

These selectors can be used alone or in combination to select the required elements more precisely. In a CSS style sheet, these selectors can be used to select and apply styles to corresponding elements.

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