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HomeWeb Front-endFront-end Q&ALet's talk about whether CSS can be used in WeChat mini programs

In recent years, WeChat mini programs have become one of the first choices for many developers for mobile application development. It is a lightweight application that is easy to use and integrates perfectly with its surroundings. For developers who develop mini programs within the WeChat ecosystem, a common question is whether WeChat mini programs can use CSS. In this article, we will answer this question together.

What is CSS?

First, let’s take a look at what CSS is and its role in the world of web development. CSS is the abbreviation of Cascading Style Sheets. It is a computer language used to describe the style expression of documents such as HTML or XML. When a web browser renders a document, the presentation of the document can be divided into two parts: its text content will be parsed and the document content will be converted into a data structure called the Document Object Model (DOM); and the document's style It is described in the form of CSS and the style of the document is converted into a structure called a rendering tree.

The role of CSS is to separate the content and style on the Web page, making style changes more convenient and can be applied to multiple documents.

Does WeChat mini program support CSS?

CSS is a language that lives in the field of Web development. Many people think that it can only be used in Web development and cannot be used in WeChat applet development. However, there is also a separate structure between the two in WeChat applet similar to Web page development. This means that you can use CSS to add styles to your applet.

In WeChat applet development, you can store CSS files in the same level of the applet project folder, and use class or id to call the CSS style where you need to apply the style to the page. . Similarly, WeChat applet development also supports CSS preprocessing programs, such as Sass and Less.

In addition to CSS, WeChat mini program development also supports WXML and JS files specified by WeChat. The combined use of these three format files makes mini program development more convenient.

It is worth noting that some styles in the CSS of mini programs may not be supported by all devices, so you should be cautious when applying CSS styles. In order to ensure that your mini program style can be displayed normally on various mobile devices, you should choose a commonly used style and conduct full testing.

Conclusion

Although WeChat applet and Web page development are different, in fact both are developed based on HTML5 and CSS3. Since WeChat mini programs are based on JavaScript language, people may think that mini programs do not support CSS. However, WeChat mini programs use WXML language combined with CSS for page design. In fact, CSS is a very important part in the development of mini programs. We can use CSS to layout page elements, adjust font size, and color settings for mini programs.

In short, for a WeChat mini program developer, understanding how to use CSS in mini programs will have a significant impact on his development skills and achievements. CSS can improve the readability and maintainability of mini programs, and make the mini program interface look more beautiful.

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