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The functions of css are: 1. It is mainly used to design the style of web pages and beautify web pages; 2. It can perform pixel-level precise control of the layout of element positions in web pages, and supports almost all font sizes and styles; 3. Gain more precise control over page layout, fonts, colors, backgrounds and other effects.
#The operating environment of this article: Windows7 system, css3, Dell G3 computer.
The role of css:
css (Cascading Style Sheets, cascading style sheets), it is a computer language used to express file styles such as HTML or XML. It is a programming language used to express HTML styles. It is a style language that can separate web pages and content.
CSS is mainly used to design the style of web pages and beautify web pages; it can not only statically modify web pages, but also dynamically format various elements of web pages in conjunction with various scripting languages.
CSS can perform pixel-level precise control over the layout of element positions in web pages, supports almost all font size styles, and has the ability to edit web page objects and model styles.
Using CSS technology when making the homepage can effectively achieve more precise control over the layout, fonts, colors, backgrounds and other effects of the page.
As long as you make some simple modifications to the corresponding code, you can change the appearance and format of different parts of the same page, or web pages with different numbers of pages.
Before CSS entered the front-end language, many people regarded CSS as a front-end language. Today, CSS can not only decorate web pages, but also format web pages with various scripts.
Advantages of Using CSS
The biggest advantage of CSS is that it allows you to separate style and layout from the content of the document. Here are some more advantages and why should we start using CSS?
1. CSS saves a lot of time
CSS provides great flexibility for setting the style attributes of elements. You write CSS once; the same code can then be applied to groups of HTML elements or reused across multiple HTML pages.
2. Easy to maintain
CSS provides a simple way to update the format of a document and maintain consistency between multiple documents. Because the content of an entire set of web pages can be easily controlled using one or more style sheets.
3. Pages load faster
CSS enables multiple pages to share formatting information, thereby reducing the complexity and duplication of document structure content. It significantly reduces the size of file transfers, resulting in faster page loads.
4. Advanced styles of HTML
CSS has a wider range of representation capabilities than HTML and provides better control over the layout of web pages. Therefore, you can get a better view of your web page than the HTML representation of elements and attributes.
5. Multi-device compatibility
CSS also allows web pages to be optimized for multiple devices or media. Using CSS, the same HTML document can be represented in different viewing styles for different rendering devices (such as desktop, mobile phones, etc.).
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