Implement various application scenarios of CSS :nth-last-of-type pseudo-class selector

To implement various application scenarios of CSS :nth-last-of-type pseudo-class selector, specific code examples are required

In CSS, the selector is our A way to select HTML elements and apply styles to them. In addition to common basic selectors, such as element selectors, class selectors, and ID selectors, CSS also provides some pseudo-class selectors to select specific elements more accurately.

One of the commonly used pseudo-class selectors is: nth-last-of-type. Its function is to select the nth sibling element of the specified type from the last. In this article, we will explore various application scenarios of the :nth-last-of-type pseudo-class selector and provide detailed code examples.

1. Select the last element

First, let us look at a simple application scenario, that is, select the last sibling element of a specified type. Let's say we have an HTML list and want to select the last paragraph element in it and apply a style to it. You can use the :nth-last-of-type(1) selector to achieve:

p:nth-last-of-type(1) {
  color: red;
}

2. Select the penultimate element

In addition to selecting the last element, we You can also select the penultimate sibling element of a specified type. Let's say we have an HTML list containing five paragraph elements and want to select the penultimate paragraph element and apply a style to it. Using the :nth-last-of-type(2) selector can be achieved:

p:nth-last-of-type(2) {
  font-weight: bold;
  color: blue;
}

3. Select elements at odd positions

:nth-last-of-type selection The operator can also be used to select odd-numbered sibling elements of a specified type. For example, we have an HTML list that contains six paragraph elements, and we want to select the paragraph elements at odd positions and apply styles to them. You can use the :nth-last-of-type(odd) selector to achieve:

p:nth-last-of-type(odd) {
  background-color: yellow;
}

4. Select elements at even positions

Similarly, we can also use: The nth-last-of-type selector selects sibling elements of the specified type at even-numbered positions. For example, we have an HTML list that contains six paragraph elements, and we want to select the paragraph element located at an even number and apply a style to it. You can use the :nth-last-of-type(even) selector to achieve:

p:nth-last-of-type(even) {
  background-color: pink;
}

5. Select a specific range of elements

:nth-last-of-type Selectors can also be used in conjunction with other selectors to select a specific range of sibling elements of a specified type. For example, we have an HTML list that contains ten paragraph elements, and we only want to select the paragraph elements between the 3rd and 6th paragraphs and apply styles to them. This can be achieved using the :nth-last-of-type(n 3):nth-last-of-type(-n 6) selector:

p:nth-last-of-type(n+3):nth-last-of-type(-n+6) {
  border: 1px solid black;
}

Summary:

In this article , we introduced various application scenarios of CSS :nth-last-of-type pseudo-class selector and provided corresponding code examples. By using the :nth-last-of-type selector, we can more precisely select the nth sibling element of a specified type from the bottom and apply styles to it. I hope this article can help you understand and apply the nth-last-of-type selector.

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