How to exclude an element in css

In the process of web design, we often need to use CSS styles to achieve various effects. But in some cases, we may need to exclude an element, that is, not perform CSS style operations on an element. This article will introduce several ways to exclude an element in CSS.

1. Use the :not selector
:not selector can select all elements except the elements in brackets. The syntax is as follows:

:not(选择器) {
  /* CSS 样式 */
}

For example, if we want to select all div elements, but exclude those with class exclude in the div elements element, then we can write like this:

div:not(.exclude) {
  /* CSS 样式 */
}

2. Use: nth-of-type() selector
:nth-of-type() The selector can select elements of the same type and exclude one of them elements, the syntax is as follows:

选择器:nth-of-type(n) /* 选中某个类型的元素的第 n 个 */
选择器:nth-of-type(-n) /* 选中除了靠后的 n 个之外的所有元素 */
选择器:nth-of-type(n - m) /* 选中第 n 到第 m 个 */

For example, if we want to select all div elements, but exclude the second div, then we can write like this:

div:nth-of-type(n + 1):not(:nth-of-type(2)) {
  /* CSS 样式 */
}

3. Use class names to exclude elements
In HTML, add a unique class name to an element, and then select other elements except this class name through CSS styles. This method is more commonly used, and multiple class names can be added for selection.

4. Use pseudo-class selectors
The pseudo-class selector in CSS is a selector that can add special attributes to the selected element. Among them, :not() is a pseudo-class selector that can exclude specific elements.

For example, if we want to select all child elements whose second font color is red under the parent element, but do not include elements with class exclude, we can write like this:

div:nth-child(n) > :nth-child(2):not(.exclude) {
  color: red;
}

In short, the above four methods can be used when excluding an element in CSS styles. Although the specific scenarios for each method may be different, they are all more practical solutions that can help us in web design. Use CSS styles more flexibly.

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