It is impossible to implement the function in css style sheet

Functions impossible to achieve with CSS style sheets

CSS (cascading style sheets) is a very important technology in front-end development. It can control the layout and style of web pages and give web pages better visual effects. and user experience. However, CSS style sheets also have their limitations, and there are some functions that they cannot implement. Let’s discuss them next.

1. Dynamic effects

CSS can achieve many static visual effects, such as gradients of colors, fonts, backgrounds, etc., but it cannot achieve true dynamic effects. For example, if we want the color or position of an element to change when the mouse moves over it, we need to use programming languages ​​such as JavaScript to achieve dynamic effects.

2. Conditional judgment

Although CSS can select elements based on different selectors and apply styles to these elements, it cannot modify the style based on conditional judgment. For example, adding an element before or after an element and modifying the style based on whether the element exists or not, in this case, you need to use a programming language such as JavaScript to implement conditional judgment.

3. Logical processing

CSS is a simple and direct way to apply styles to selected elements when processing styles, but it cannot handle logic and algorithms. For example, we want to display some data on the page and sort and filter it according to certain rules. In this case, we need to use a programming language for logical processing.

4. Data Storage

The main function of CSS style sheet is to control the display of web pages. It does not have the function of data storage. If we need to store some data at runtime and control the style through this data, then we need to use a programming language for data storage and processing.

To sum up, although CSS plays a very important role in web development, it cannot complete some operations and data processing with complex logic. In this case, a programming language is needed to implement it. Therefore, it is necessary to fully understand the advantages and limitations of CSS during the development process so that it can better play its role in front-end development.

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